1. Introduction
Crypto currency started off as an experiment in new technologies and has evolved into a major force within the global economy. After the launching of Bitcoin in 2009 by an unknown person or a group under the nick name Satoshi Nakamoto, the market of cryptocurrencies has rapidly evolved and is now includes thousands of different cryptocurrencies that have diverse features and applications. This growth has also seen the firm attracting more individual investors, corporate entities as well as tech-savvy firms, influencers, and even governments [
1].
Cryptocurrency is essentially an online or digital money that uses encryption techniques to authenticate transactions, regulate the generation of new coins or tokens and check the exchange of coins. Traditional fiat currencies on the other hand are issued by central authorities and are anchored on central authority, while cryptocurrencies run on distributed computing systems or a virtual computer with blockchain technology at its core. This decentralization entails the enhanced transparency, less use of third parties, and better security characteristics as advocates believe that this could dramatically transform the performance of financial transactions worldwide [
2].
Below is the wide array of views that have been elicited by the existence and use of cryptocurrencies; Proponents consider them as disruptive instruments that provide better, efficient and cheaper means of transacting across borders, and as instruments that are key enablers of emerging DeFi ecosystems. They claim that; first, the use of cryptocurrencies will enable access to financial services for the financially excluded population second, the removal of middlemen will help to make transaction costs cheaper third, cryptocurrencies offers new investment opportunities that could previously not be accessed.
On the other hand, skeptics downplay on the speculative cryptocurrencies because of problems like high fluctuation, legal ambiguities, and negative inclination toward unlawful business. Another factor that has elicited concerns about cryptocurrency is on the environmental footprint of the process of mining, especially for greasy coins such as Bitcoin. Also, insufficient and inadequately developed legal acts in many regions make the circumstances rather vague, which may become a problem for the expansion of visibility and inclusion in the conventional financial sphere [
3].
The following review paper looks at cryptocurrency with the view to assessing whether it does represent a new revolution in the financial world or if it is just a passing fad created by speculators. The paper will discuss on the foundational application of blockchain, look at the various aspects of industries using cryptocurrencies, weigh the opportunities against the risks and the challenges associated with it. This way, the present review aims to present a brief overview of cryptocurrencies in terms of their influence on the world’s continuing financial revolution through identifying both the optimistic and skeptical points of view [
4].
2. Blockchain Technology: This Is the Background on the Creation of Cryptocurrency
What distinguishes cryptocurrencies is the underlying technology called blockchain; it is a distributed recording database that can occur across a network of computers. It can therefore be argued that blockchain is the underlying mechanism that helps makes cryptocurrency transactions secure, transparent and tamper proof. Its development has not only led to the emergence of digital currencies but also triggered interest in different fields including supply chain management, health, and politics where issues of transparency as well as security are very crucial [
5].
2.1. How Blockchain Works
Blockchain can be defined as a digital ledger that comprises a series of blocks; with each block having the record of the transactions. Once these blocks are created then these blocks are interconnected with each other and are bound by the cryptographic methods. Blockchains comprise the network participants in every given transaction and cluster these into a block. After being verified, this block is then added one after another to the previous chain continuing the chain thus making it practically impossible to alter or manipulate the records of the transactions [
6].
The key components of blockchain technology include:
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Decentralization: It is different from financial systems that work through the verification of transactions through centralized units like banks; the system is backed by a swarm of computers, called nodes. All the nodes store the whole blockchain database to make sure that no single entity can manage the whole network.
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Consensus Mechanisms: The blockchain networks use consensus for the purposes of validating transactions in the network while ensuring their security. The two common consensus mechanisms that are popular among the cryptocurrencies are the Proof of Work (PoW), and the Proof of Stake (PoS). While in PoW miners are using computational power to validate the transactions and add blocks to the chain, in PoS validators are selected depending on the number of tokens that they are willing to ‘stake’.
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Immutability: After appending a block into a blockchain, nobody can alter or even delete any record found within that block without the approval of the other network members. This immutability assures that records of other transactions are permanent and cannot be altered in any way thus increasing security and enabling more confidence.
- -
Transparency: Each of the operations that takes place within a blockchain is put into a public registry that is available to all stakeholders. This makes the system very transparent, in a sense that if anyone would like to cross check the transactions that have been recorded on the blockchain they easily can [
7,
8].
2.2. Most Important Uses of the Blockchain System
The following are some of the unique characteristics of blockchain which could explain its applicability in cryptocurrencies and other related activities. These features include:
- -
Security: A hashing function along with consensus mechanisms provide the immutability of the content stored in the blockchain. The agreements reached on the blockchain must be replicated on many nodes, which is very challenging for the wrong actors to do.
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Transparency and Trust: When it comes to the information dissemination within the public blockchains, such as in bitcoins and ethereum every transaction is transparent. It builds trust because users are able to assess the authenticity of exchanges on the block chain without the need for third parties [
9].
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Decentralization: Blockchain gets rid of the middlemen since it provides for direct buyer-seller transactions. This reduces dependence on central authorities such as banks or other financial related institutions since users control their assets fully at all times.
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Efficiency and Automation: Blockchain has the capability of automating contracts through smart contracts, program tokens that contain terms of a contract which are executed once certain conditions are met. Such contracts can be implemented when certain trigger terms are initiated and do not require a middleman and involve shorter transactions [
10].
2.3. Blockchain’s Contribution in Facilitating Cryptocurrencies
The technology behind cryptocurrencies lies in one called ‘blockchain’. The first crytocurrency is Bitcoin, and the security and decentralisation of this currency is based on the block chain. Other coins including Ether have evolved from this blockchain in that they allow for a wide range of services like DeFi and NFTs.
2.3.1. Bitcoin and Proof of Work (PoW)
Bitcoin’s block chain relies on a Proof of Work consensus algorithm where by different participants or miners have to guess a number within a specific range to gain access to the right to process new transactions. The first solver of the puzzle expires the block and this is rewarded through issuance of newly created bitcoins. This process is also known as mining and it plays an important role of making the Bitcoin network secure and free from any form of compromise. However, PoW has had some drawbacks attached to it; the most notable one being the high-energy consumption that is involved, given the fact that mining needs large amounts of computing power.
2.3.2. Ðioskoh Ethereum and Smart Contracts
With Ethereum’s help, for example, the concept of smart contracts was introduced, which are rather self-sustaining contracts that are coded directly into the Ethereum blockchain. These contracts trigger unilaterally once specific actions are stated and they help facilitate decentralized applications (Dapps) and do not require a third party in transactions. Ethereum has compatible consensus that is a Proof of Stake (PoS) that Ethereum is transitioning to Ethereum 2. 0, It is postulated to be superior to PoW in terms of energy consumptions [
11,
12].
2.4. Blockchain Beyond Cryptocurrency
Although blockchain was created to accommodate cryptocurrencies, the technology is has the potential to serve more than that. Currently, various industries are considering blockchain technology for the purpose of improving the efficiency, transparency and security of various processes. Key areas where blockchain is making an impact include:Key areas where blockchain is making an impact include:
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Supply Chain Management: Blockchain implemented ensures that supply chain gets full transparency and real-time tracking in intervals from the manufacturer to the consumer. This minimizes cases of fraud because there is check and balance system in organization.
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Healthcare: Valid blockchain application in healthcare can enhance data confidentiality and patient’s privacy by storing their medical records in the blockchain. It gives patients an authority to allow a healthcare provider access to his/her records which will contain the right information as well as privacy [
13].
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Government Services: Blockchain’s applications are also being considered by governments to enhance the functionality and the accountability of government agencies, for instance, in the land registries, voting and identification processes. Recently, blockchain has emerged as a solution to cut down on red tape and diminish chance for fraud.
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Decentralized Finance (DeFi): DeFi refers to decentralized finance that is currently a burgeoning industry and operates through the utilization of Blockchain technology. It enables users to lend, borrow or trade within P2P marketplace system without involving the traditional third parties such as banks hence expanding the market [
14].
2.5. Limitations of Blockchain Technology
Despite its promise, blockchain technology faces several challenges:
- -
Scalability: As more and more transactions take place on the block chain the efficiency of the system decreases and congestion rises. Some networks like the Bitcoin and Ethereum have had a problem with scalability that comes with expensive transaction fees and slow transactions.
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Energy Consumption: First, the PoW such as the one used by Bitcoin is very computationally intensive and therefore very expensive in terms of energy. This has made some people question the environmental friendliness of blockchain platforms especially those with vast distribution.
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Regulation and Legal Uncertainty: Blockchain and cryptocurrencies are currently without well-defined legal and regulatory oversight, thus providing an environment that is not ideal for business and investors. Governments are still experiencing difficulties in how to control this decentralised technology; the legal issues involved; data protection; security and taxes [
15].
2.6. Future of the Blockchain
Blockchain technology is relatively young and has the possibility to grow and overcome current problems. Ethereum developers are actively exploring scaling solutions including Layer 2 protocols and sharding so as to enhance transaction velocities and decrease costs. While there is hope in Transitioning towards Proof of Stake (PoS) consensus mechanism as is the case of Ethereum, there is hope that the environmental footprint of blockchain networks will further be lowered.
Since more and more industries begin to try using blockchain, it is evident that it is not limited solely to the financial sphere. From electronic money to stock market and various based on decentralization, security and transparence supply chain systems, blockchain technology has perfect application to be one of the most valuable or even unique inventions of this century [
16].
3. Cryptocurrency Adoption: Industries and Use Cases
Bitcoin kick started the digital currency market and ever since, it has grown from just being a digital currency to a platform in the financial and technological sector with countless uses in various fields. This section analyses how various industries are incorporating cryptocurrencies and blockchain, special focusing on various successful cases that show that such technologies may revolutionize conventional models and approaches.
3.1. Financial Sector
The use of these cryptocurrencies has been mainly in the financial industry. Cryptocurrencies are considered as a threat to existing traditional financial systems because they are decentralized and allow people to transact directly with one another. Newer applications that have emerged in the ecosystem include the Decentralized Finance or DeFi wherein people are able to lend, borrow, and even trade without the need for banks. This will have far reaching implications to lowering the cost of transactions, enhancing the availability of financial products, and opening up new opportunities for investment [
17].
3.1.1. Cross-Border Payments
Among all the qualities of cryptocurrencies, one of the most popular application areas is international remittances. Sending money through the conventional means can at times be costly and time-consuming since it has to go through other banks and sometimes one has to change currency. Cryptocurrencies especially the stable coins such as the USDC and USDT costs less time and money than banking systems. These digital assets are enabling users to make cross borders payment with near instant settlement and very low charges.
3.1.2. Remittances
Cryptocurrencies therefore emerge as a viable solution towards this problem more so for countries with a large number of expatriates. Employees living in other countries have the opportunity to transfer money to their relatives paying much less than using such services as Western Union or MoneyGram. Some of the platforms that have made news for themselves include Ripple (XRP) for excellent cross- border transactions [
18].
3.1.3. Digital Assets and Tokenization
Cryptocurrencies also facilitate the ‘tokenization of assets’, that is taking traditional tangible and intangible securities such as equities, bonds, property or physical commodities and putting them in the shape of tokens on the block chain. These tokens can then be traded, split into smaller parts or locked up in the DeFi space as collateral, hence new possibilities of investing and asset management.
3.2. Retail and E-Commerce
With an increasingly expanding customer base of the digital currencies, the retail and e-commerce industries have embraced it as a mode of payment. Huge firms such as PayPal, Overstock and Shopify have integrated cryptocurrencies such as Bitcoin and Ethereum as the accepted mode of paying for products. Although this is yet in its embryonic stage, it has the potential to extend to include other norms such as digital currencies for major consumer use.
3.2.1. Cryptocurrency Payment Processors
There are various cryptocurrency payment processors who act as an intermediaries between consumers and the businesses, which includes BitPay and CoinGate among others. Such platforms enable merchants to receive payments in cryptocurrencies but actually get local currency reducing on the volatility risk inherent in possessing digital assets [
19].
3.2.2. Promotions and Recharge Bonuses
Cryptocurrencies are also being incorporated into loyalty programs to give the customers cryptocurrencies as incentives for their purchasing. These tokens can be expiration for goods, services, or exchanged with other tokens or other forms of cryptocurrency. For instance, some of the current innovations and pilot projects include blockchain-based flexible and interindustry airline loyalty points or flexible global retailer-based rewards.
3.2.3. Micropayments
Blockchain enhances micropayments – small financial transactions which earlier were not viable to process because of high fees. This is especially useful for content creators, bloggers or companies with online presence that can now receive small amounts from their clients in cryptocurrencies eliminating some of the costs associated with other payment systems [
20].
3.3. Supply Chain Management
There are growing trends showing how blockchain and cryptocurrencies can improve the performance of supply chain. Today’s supply chain requirements most especially in the global market for effective tracking of products traceability and security, this has favored the use of blockchain solutions since these provide real-time transparency of product movement.
3.3.1. Transparency and Traceability
Beside this, the use of a blockchain enables tracking the origin, production, storing, and transportation of products at different stages in entities’ supply chain. It also helps guarantee compliance with the character of products, and prevent such problems as counterfeiting or fraud. For instance, to confirm the genuineness of organic food, food producers and suppliers can implement blockchain while elegance oriented companies such as jewellers and watch makers can as well incorporate the system to check on the originality of their products [
21].
3.3.2. Payments in Supply Chain
Cryptocurrencies can also be used for making payment between the suppliers, manufacturers, and retailers in the supply chain. Cryptocurrencies can help minimise the cost of transactions, quicken up the payment procedures and thus enable quicker settlements between the parties in question. Some of them include VeChain and IBM Food Trust which are facilitating the use of blockchain in this field.
3.4. Government and Public Services
Governments and public institutions are also starting to look into cryptocurrencies and block chain technology for record keeping for their services and products or even digital money.
3.4.1. The Central Bank Digital Currencies (CBDCs)
Among the most special trends which have occurred in the cryptocurrency market, we can single out Central Bank Digital Currencies (CBDCs). CBDCs are the official forms of national money in the digital world and contain the benefits of cryptocurrencies and the reliability of the fiat money. China, Sweden and Bahamas have started testing it or have already launched it, other countries are in different phases of investigation and experimentation. CBDCs have the potential to change the way central banks’ exercise monetary policy, brought down the cost of having physical money in circulation, and enhance the process of payments [
22].
3.4.2. It Is Important Because It Good, Practice the 2 Land Registries and Public Records as Well It Is Suggested
Blockchain’s decentralization and immutability suitability mean that it offers an excellent solution to the administration of public data such as land registry, birth certificates, and licenses. Some governments such as that of Georgia and Sweden have pilot projects that are implementing blockchain for land registries to solve issues to do with fraud, corruption and inefficiency. Blockchain enables for accurate report keeping which means that ownership and other legal documents cannot be changed without being approved by the network.
3.4.3. Voting Systems
Blockchain technology is also being explored for use in voting systems to improve transparency and trust in elections. Blockchain-based voting ensures that every vote is securely recorded and can be audited by both the public and election officials, reducing the likelihood of fraud or manipulation. Pilot projects for blockchain voting have been conducted in countries like the U.S., South Korea, and Estonia [
23].
3.5. Healthcare
This is particularly evident in the healthcare industry where block chain and crypto currency technology is slowly being implemented to solve concerns of data protection and privacy as well as effectiveness.
3.5. Contact Information to Be Kept Secure for the Following Reasons
The application of the block chain technology will allow for the secure storage of the medical records while at the same time allowing the patient full control over the disclosure of their records. This allows the sharing of health records between doctors, insurance companies and researchers for clinical analysis and research in a secure manner and without violating the privacy laws of respective countries including the HIPPA laws of the United States of America. As the forensic analysis in the modern block chain show, it is much harder for hackers to penetrate the block chain and manipulate medical records [
24].
3.5.2. Payments in Healthcare
Cryptocurrencies act as a form of payment for clients and healthcare service providers especially in cases of cross border where exchange rates and transaction charges may prove high. Today, there are a number of clinics and telemedicine services that accept cryptocurrencies for payment to make health care services available for individuals in the areas with a weak banking system.
3.6. Entertainment and Digital Content
Today’s entertainment and digital content industries are using Cryptocurrencies to redefine how content is produced, shared, and paid.
3.6.1. Decentralized Content Platforms
Several companies such as Audius and Theta are implementing block chain platforms to form decentralized content sharing platforms. They can also directly upload their artistic work, music and other content, leaving out the middlemen and getting fairly paid through cryptocurrencies. It centralizes content publication directly to the consumers and keeps creators more in control of application and protection of their copyrights [
25].
3.6.2. Non-Fungible Tokens (NFTs)
NFTs are the tokens that can represent anything original and indivisible which is adhered to the concept of the blockchain and can be sold, bought and traded. NFTs have received much attention in the artistic, game, and music sectors as a means of ensuring ownership and making profitability of digital art possible. It will also enable artists to own their digital art and earn royalties from their pieces while giving the buyers the proof of ownership of the asset.
3.7. Charity and Philanthropy
Cryptocurrency is also being used in the charity and philanthropy sector too where transparency and accountability plays very vital role. Some nonprofit organisations and charity require cryptocurrency donations since it is much faster and cheaper as compared to traditional methods of donating money across borders. Blockchain in charity can also show where the donated money is being used thus creating accountability in charitable causes [
26].
4. The Benefits of Cryptocurrency [27].
Cryptocurrency can be defined as an emerging financial technology that is commonly associated with the creation digital or virtual money that has the ability of changing the face of many things including finance, technology and even reload Data from the traditional forms or methods. Crypto currencies are based on technological principles of the so-called blockchain; this means that it can operate from the outside of the conventional systems of finance which can signal further advances in terms of transparency, security and inclusiveness. In this section the author lists the major advantages which the use of cryptocurrencies brings for various industries.
4.1. Financial Inclusion
Probably, the most important developmental benefit of cryptocurrency is the opportunity to enhance the monetary policy and create inclusions. Approximately 1.7 billion people across the globe are either unbanked or underbanked implying that they cannot access basic financial tools like savings accounts, loans, and credit. Cryptocurrencies thus, since they are digital and decentralized, can allow people in remote or in the areas with less developed financial systems get a shot at the world economy.
4.1.1. Financial Inclusion
cryptocurrencies can be obtained in a minute with the help of a smartphone and a connection to the Internet without opening an account with the bank. It provides a chance to people in the countries with the ineffective financial systems and/or the shortage of financial infrastructure to protect and store their money as well as invest it. The above opportunities are further advanced by DeFi platforms and they involve borrowing, lending, and earning of interest without the intervention of a conventional bank.
4.1.2. Cross-Border Transactions
Cryptocurrencies are used in performing cross border transactions which are cheap and fast. Whereas other methods of sending remittances are expensive and normally take days to complete, cryptocurrency offers almost real-time transfers at much lower costs. This is especially the case for the migrants and expatriates who have to transfer money to their families in the developing countries [
28].
4.2. Transaction and Usage Costs Have Decreased
The conventional financial systems need the services of various middlemen, and all of them usually charge their commission. The use of cryptocurrencies can eliminate these middlemen through which transactions take place hence lowering the total cost of transferring money and making payments.
4.2.1. Peer-to-Peer Transactions
Mainly, cryptocurrencies allow peer-to-peer (P2P) transactions thereby not involving any third party such as banks or payment processors. In which this can greatly decrease transaction charges particularly for cross-border transfers. For example, to transfer Bitcoin or Ethereum to another country may be several folds cheaper than the current remittance services [
29].
4.2.2. Micropayments
However, two things that can be achieved through the adoption of cryptocurrencies include; reduction of the cost of high volumes of transactions, and the ability to perform micropayments which are very ineffective when it comes to costs. However, besides freelancers, anyone can benefit from this capability – content creators, application developers, online platforms where money transactions, including those in cents, are performed.
4.3. Increased Protection and Privacy
In this way, the cryptocurrencies have more security benefits than the traditional financial instruments. This makes transactions safe and very hard to forge given that cryptographic procedures are used in the process of executing the business. In addition, its use of records means that once a transaction has been made, it cannot be changed thus making the records very authentic [
30].
4.3.1. Decentralization and Trustless Transactions
Cryptocurrencies follow decentralized systems implying that there is no single authority over the system. Each transaction is justified by a network of nodes, which exclude the possibility of a centralized control of transactions, fraud or corruption. It makes users avoid the need to rely on a third party to transact securely with the decentralized platform.
4.3.2. Privacy and Anonymity
Most crypto assets come with easily trackable transaction histories while some, such as Monero and Zcash, were developed with anonymous use in mind. Most of the privacy-focused coins enable people to make transactions without the disclosure of their identity making it suitable for any individual who feels paranoid from excessive surveillance, or data privacy.
4.4. Faster Transaction Settlements
The new generation banking involves extended delays since such transactions require going through intermediaries, the banking hours or even days off. Cryptocurrencies mitigate this problem in their capacity to settle transaction within a short span without considering the geographical location of the parties involved [
31].
4.4.1. 24/7 Availability
Cryptocurrency networks are online all the time unlike banks which are restricted by working days, weeks and are closed during the weekends let alone during the holidays. This availability lets the users to either send or receive the payments anytime, thus enhancing the speed of the transactions especially in the emergency periods.
4.4.2. Blockchain Settlements
Cryptocurrencies have a capability to settle transactions through the use of the blockchain technology. For instance, Bitcoins, the original cryptocurrency take about 10minutes to confirm a transaction, while newer block chain platforms such as Solano and Algorand can process thousands of transactions in a second, hence cutting down on the time of settlement.
4.5. Decentralized Finance or DeFi and Other Financial Innovations
Cryptocurrency has birthed the DeFi movement which aims at recreating and improving on the existing traditional financial services through the use of blockchain. DeFi provides the utility of different financial services like lending and borrowing and trading and saving but without the intermediary of centralised financial institutions like banks, stock brokers etc [
32].
4.5.1. Smart Contract Automation
Defi applications use smart contracts as agreements which are written and automatically executed on the blockchain. These contracts automatically implement the terms of an agreement, thereby helping to avoid use of middlemen such as lawyers or banks. Generally, smart contracts are most beneficial for financial transactions, for instance, where there is trading of options, and in claim settlement of insurance policies.
4.5.2. New Features – Yield Farming and Staking
DeFi tends to offer new financial instruments to make money: yield farming that allows users to receive passive income by lending cryptocurrencies or staking and validation of the blockchain network. All these options yield much higher returns than regular savings accounts or investment products hence appealing to people who are in search of new ways of creating wealth.
4.6. Transparency and Accountability
Blockchain has the ability for providing transparency that is unmatchable in the case of cryptocurrency transaction. Each transaction is automatically written and documented and anybody on the network can check on this documentation hence encouraging accountability. Such level of openness is actually commendable more so in areas that require validation of funds such as charity, governance and procurement [
33].
4.6.1. Auditability
Another characteristic of blockchain is the block chain records which are said to be irreversible since once a record has been made, it cannot be changed. This makes it possible for financial records, transfer of ownership, and contracts to be secure and this will always have a record that cannot be altered hence cutting down on fraud and cases of corruption.
4.6.2. Trust in Organizations
Blockchain has a positive effect on the transparency that provides organizations and their stakeholders with higher levels of trust. For instance, the nonprofit organizations can use blockchain to provide proof that various funds been donated are being utilized as required hence making them to get more donations.
4.7. Business Investment and Wealth Building
Cryptocurrencies have offered people various ways through which they can invest, including to institutional investors. The advocates of Bitcoins, Ethereum and other Cryptocurrencies that invested on them in the last decade have been making profits out of them [
34].
4.7.1. Portfolio Diversification
Cryptocurrencies are digital assets that differ from traditional financial instruments thus can be an effective way to diversify an investment portfolio. They fall outside of conventional products, stocks, bonds or even real estate which enable investors to minimize their losses during an economic recession or just high inflation. This diversification potential has further made cryptocurrencies to be the most popular type of investment among the retail as well as institutional investors.
4.7.2. High Returns and Returns Speculation
Some of the cryptocurrencies have experienced sharp spikes in their value, thus attracting speculative investors in the same. Of course this involves great risks as well but due to the high potentiality of high returns people are now willing to invest in cryptocurrencies. Now there are various platform like Coinbase and Binance through which the common man can invest in cryptocurrencies [
35].
4.8. Empowerment Through Decentralization
As explicit, the decentralized characteristic in the utilization of digital money proves to be advantageous to people since they can manage their resources and monetary exchanges than in conventional techniques. Unlike the centralized banking systems where a specific authority owns and controls money, bitcoin’s users solely own and have exclusive control over their funds and wallets.
4.8.1. Censorship Resistance
Cryptocurrencies are relatively immune to censorship in the sense that one cannot prevent transactions from happening or undo them if they wanted to be done by third parties such as governments or banks. This characteristic becomes especially valuable for those who reside in the countries with authoritarian governments, or weak economies where the access to services of such a kind can be limited, or might be controlled by the state.
4.8.2. Sovereignty over Assets
Cryptocurrencies enabled the customers to own their money, or better yet, their wealth, in digital wallets, without necessarily going through banks and other related institutions. This has the allure of regaining control of one’s money circumstances for those who do not like the uncertainty that accompanies matters of closures of certain banks, devaluation of certain currencies, or even certain political instability [
36].
5. Cryptocurrency: Hype or a Game-Changer?
With the widespread acceptance of cryptocurrency in current day society, the argument and use of cryptocurrency in the global economy increases as well. Of course, many people consider cryptocurrencies the new generation of money, a brand-new method of creating and circulating economic values, while others argue that cryptocurrencies are an elementary bubble created by the viral hype and irrational optimism. In this section, two approaches are discussed taking into consideration the question whether cryptocurrency possesses any significant change or is just another fad.
5.1. The Case for Hype
However, based on the analyses of its conceptual characteristics, numerous scholars have come up with criticisms of cryptocurrency stating that it is driven more by hype than the real economic value. Several factors contribute to this perspective:
5.1.1. Continuing with Price Oscillation This Key Highlights on Speculations
The fluctuation in price is incredibly high making many investors doubt the stability of the coin as an ideal investment. Current applications of Bitcoin, Ethereum, and other cryptocurrencies that have flooded the global markets typical exhibit wild volatility due to speculative trading, market manipulation, and news events. These swings in prices make it very imitative for cryptocurrencies to be used as a store value or a means of exchange [
37].
This is what has attributed the high volatility of the cryptocurrency market to as being similar to such financial bubbles as the dot-com bubble or housing bubble where the price of assets was highly inflated. Some analysts said that such an artificial surge is possible in the cryptocurrency market because, according to them, most investors are using the FOMO effect loosely translated as the fear of missing out rather than investing in the underlying technology.
5.1.2. There Is an Absence of Regulatory Framework
There is lack of certainty in regulation of Cryptocurrency, something that makes it attract scepticism. Most governments are still in a dilemma on how to control the use of digital currencies and this has led to the development of patchy and relayed methods throughout the world. Some countries have outright banned or severely regulated cryptocurrencies while in other countries they are permitted [
38].
Such freedom throws the investors into a lot of dangers such as fraud, embezzlement, and complete loss of the invested amount of money. The current issues like the Mt. Gox and recently FTX collapse paint a picture of what it is like to be part of an unregulated market where the customer has nearly no protection. Critics continue to regard cryptocurrencies as more of a high-risk and highly-sophisticated Gamble until sound legal systems are provided to govern the market.
5.1.3. Environmental Concerns
Another issue associated with cryptocurrency is its sustainability especially concerning the practice of proof-of-work mining. Mining of bitcoins is very intensive and uses a lot of electricity which is mostly produced by fossil energy, hence releasing carbon emissions similar to the ones released by some countries. This has elicited criticism from environmentalists and leads to the matter of sustainability of cryptocurrency in today’s environmentally conscious world [
39].
While some projects, for instance, the Ethereum migration to proof-of-stake consensus attempt to unveil a sustainable blockchain network, the future of energy-intensive cryptocurrencies is questionable.
5.1.4. Usage in Criminal Activities
Some of the other negative attributes of cryptocurrencies include their use in criminal activities including money laundering, tax avoidance and supporting of criminal operations. Most cryptographic currencies have been created under pseudonyms, and thus provide anonymity to users who want to evade laws and financial systems. While transparency of blockchain is somewhat safeguard against misuse, the public rightly or wrongly associating cryptocurrency with unlawful activities has created a negative sentiment towards the technology, and increased pressure on governments to regulate cryptocurrencies [
40].
5.2. The Case for Game-Changer
However, many advocates auto agree that cryptocurrency go beyond the hype that accompanies them. Due to its prospects in reforming the financial structure and other markets, this model can become the key driver of changes in the global economy.
5.2.1. Disrupting Traditional Finance
The most satisfying and valid argument of cryptocurrency is its ability to change the existing systems of financially. Cryptocurrencies eliminate middlemen such as banks in exchange for transactions by allowing decentralized P2P transactions by buyers and users. Such disruption is most evident in fields such as cross border payment where cost and time of settlement has been slashed by cryptocurrencies.
Another revolutionary concept is Decentralized Finance (DeFi), which provides lending, borrowing as well as trading services based on blockchain technology but without any need for a centralized authority. The decentralized financial platforms are levelling the field for the provision of financial products especially in the developing world where fractionalization of retail banking is non-existent [
41].
5.2.2. Promoting and Enabling Financial Sector Development
This means that the decentralized property of the cryptocurrency gives monetary autonomy to people. In countries which have a turbulence in their economic status, or high inflation rates, or an unfavourable government that only oppresses the people, then cryptocurrencies is the savior for the people to be able to transact in the world economy. This is a relevant empowering point for the unbanked and underbanked, the people who have no access to the formal financial services.
Cryptocurrencies are providing service that bans cannot that is, providing financial services and thereby empowering millions of people with economic freedom [
42].
5.2.3. Innovation Beyond Finance: Smart Contracts & Blockchain Technology
Such currencies are only one of many use cases based on blockchain although the technology is not limited to financial applications. For instance, smart contracts whereby contractual terms are coded into a system that can automatically execute contractual terms are creating possibilities in law, insurance, and even supply chain among others.
Again, resilience, security, and transparency offered by the blockchain technology is being applied in various sectors including health sector, voting system, and record keeping. Because of these innovations, trust and verification tasks can be expected to be dealt with differently in many sectors, giving rise to cryptocurrencies and placing them in a technological spectrum [
43].
5.2.4. Store of Value and Digital Gold
However, despite such a highly speculative nature, Bitcoin is regarded by many investors as a digital form of gold, or a ‘store of value. This is attributed to its limited supply of 21 million units of the cryptocurrency. Corp orates such as Tesla and MicroStrategy have now started buying massive quantities of bitcoins with different investors and hedge funds perceiving it as an avenue through which they can hold their wealth and see it improve almost in the long term [
44].
For these investors, crypto is a game changer, as it is seen as a new form of money as opposed to gold, real estate, bonds, particularly at times when inflation rates are high, and monetary policies are accommodative.
5.2.5. Metaverse and Web 3 the. 0
Cryptocurrencies are at the core of the concept of a decentralized web that is commonly called Web 3. 0 where users own their data and the identities they preserve online. Metaverse will include digital currencies and tokens that will be the key components of the virtual world alongside with real-life activities. Thus, cryptocurrencies will most probably occupy a significant position in the new economy of the digital space, owning to virtual transactions, property rights, and dApps [
45,
46,
47].
5.3. Balancing the Perspectives
From the debate of cryptocurrency as hype or not or as a game changer or not, still truth needs to be accepted that both sides are right. Cryptocurrencies still belong to the category of the relatively new and constantly developing technology that still entails significant risks and issues. It is impossible to deny that market risks are highly speculative; regulatory changes may remain unpredictable; and environmental aspects remain critical [
48,
49].
Nevertheless, it is noteworthy that technology behind cryptocurrency and its applications holds the key to unprecedented opportunities. Thus, cryptocurrencies pose a threat to the conventional monetary structures, enhance people’s rights, and create novel paradigms in the organization of society and economy. The future of the cryptocurrency will therefore be shaped by the effects of these risks, the formulation of policies in regulating the use and issuance of the technology as well as the advancements that will be made in developing the cryptocurrency technology [
50].
6. Conclusion
The emergence of cryptocurrencies is without doubt one of the most pressing issues of the 21st century raising discussions about whether the technology is simply a bubble or a real life changing opportunity for global economy. Although the sensationalism around the ‘bubble like’ substantial increases in prices and combined with the speculative investment narratives have caused concern, disregarding cryptocurrency in its entirety would be to do so by losing sight of its massive value and new paradigms it brings to the table.
In essence, cryptocurrency provides decentralization, equal access to finance and clarity, which is a threat to the centralized financial systems and institutions that dominate the market and give a limited power and control to the public. Blockchain, smart contracts and the emergence of the Decentralised Finance (DeFi) platforms also points to opportunities for new models, increased value and more propositions that can cater for more unsophisticated consumers. Also, cryptocurrencies are used to carry out international trade and small charges, eliminating costs and time to wait for a fix for users globally.
Nevertheless, challenges remain. Some of the challenges that have to be overcome include; Fluctuating markets, uncertain regulatory measures, and the factor affecting the environment. Its reliability is further threatened by the high probability of fraud, hacking and the use of cryptocurrencies for unlawful purposes. Since governments and institutions endeavour to establish the galvanising legislation in an effort to regulate the crypto-market, this sphere will inevitably transform.
Nevertheless, whether or not the emergence of cryptocurrency will be effective or will turn out to be just a fad is defined by the given challenges. This implies that constructing the lasting and secure system for the cryptocurrencies to function long-term within the mainstream finance, governance and commerce will necessitate the collective work of the regulators, developers and the users.
For now, while the notion may overstate it somewhat, cryptocurrency has shown that it is far more than what it consists of, which is nothing more than hype. Cryptocurrency overlapping from Financial sectors to Technical sectors and its ability to make a shift and transform everyone’s life worldwide makes it the shape the future of digital economy. The true reach of its impact will remain defined as the technology develops and reaches past its current state of adolescence in defining a new age of distributed advancement.
Acknowledgement
The author would like to thank all his mentors. The paper compiled here are collected over a period of time and may have been reproduced verbatim. Apologize to all researchers if in-advertently failed to acknowledge them in the references.
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