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For questions relating to travel in time. Such travel may involve FTL travel; consider also using the [faster-than-light] tag.

8 votes

If time travel is possible in the future, no matter how distant, why haven't they come back ...

Because you can't interact with time, in the general sense. Time travel isn't like going to Disneyland and stading in line for all the cool rides, arguing with the guy that cut in front of you, or sw …
Steve Mangiameli's user avatar
6 votes

Lost in the multiverse: how to find home?

Let me start by saying I observed carefully the tags had nothing to do with science, so this will not be a "sciencey" answer. But I think you are on to something with the magic compass, only I'd call …
Steve Mangiameli's user avatar
2 votes

How could "groundhogging" work, and what explanation would require the least handwaving?

The problem with a potion is it is ingested and wears off in time as the body metabolizes the potion. The strength of the potion and the speed of an individual's metabolism would effect the duration …
Steve Mangiameli's user avatar
1 vote

What would the economic impact of FTL time travel be?

The effect on the economy would be determined by several factors. Is there a minimum distance FTL can be utilized? Are we talking feet, miles, light years? What is the smallest FTL drive available …
Steve Mangiameli's user avatar