@article{202103.0314, doi = {10.20944/preprints202103.0314.v1}, url = {https://doi.org/10.20944/preprints202103.0314.v1}, year = 2021, month = {March}, publisher = {Preprints}, author = {Andrew W Beckwith}, title = {Defining Arrow of Time at The Start of Inflation Using Traditional Cosmology Initially as an Example and Finally Penrose Cyclic Conformal Cosmology with Singular versus Nonsingular Starting Points?}, journal = {Preprints} }