News & popular culture & observing various ideas & Sci-Fi concepts that become a technological reality. What is reality in general? Some say that it's all part of a cosmic simulation.
https://en.wikipedia.org/wiki/The_Twilight_Zone#%22The_Time_Element%22_(1958)
https://twilightzone.fandom.com/wiki/The_Time_Element
https://thedigitallabyrinth.blogspot.com/search?q=Time+Travel