Time Travel

 

Theoretical Physicist Brian Greene Explains Time in 5 Levels of Difficulty | WIRED https://www.youtube.com/watch?v=TAhbFRMURtg

Does the Past Still Exist? https://www.youtube.com/watch?v=GwzN5YwMzv0

https://data-loaf.blogspot.com/search?q=Time+Travel