GrumpyCatFace wrote:Speaker to Animals wrote:GrumpyCatFace wrote:
This, to me, is the same as religion - accepting an idea and building around it, with zero supporting evidence, because you want it to be true.
Show me a shred of evidence, other than some lonely forum posters, and I'll start thinking about it. Otherwise, it's just kids and schizos looking for attention.
I didn't accept it or deny it. You are the one making a positive claim here.
If the past and future are not real (i.e. only the present moment is real in the philosophical sense), then time travel shouldn't be possible.
My other statement was that, if time travel is indeed possible, then the zero-one law dictates that there must (or at least very probably) be time travelers unless there is some reason why humanity cannot or will never discover the technology. Think about it, given practically endless time to develop advanced technology, if some technology we all think about and wish we had is possible, then we will eventually uncover that technology and use it. But because we are talking about time travel, this means there must be time travelers on some very real time line (not just a present moment).
I forget where I saw it, but this was argued by a mathematician once. Basically, 'if time travel is possible, then we should be swamped with time travelers'.
It's impossible, by any definition that I can think of, but fun to think about. It's just one of those things that we really want to be true.
It depends upon how the universe works. If we live in a multiverse, then probably not swamped at all. Occasional visitors would show up, but that's about it. Each "time travel" event would just be a new tangent in the multiverse forked off where a traveler at one point in his timeline travels to a point another timeline that mostly corresponds to a previous time in his timeline. More likely, an entirely new thread branches off from some other timeline that represents that timeline with the traveler in it as opposed to that timeline with no traveler.
As to why they wouldn't announce themselves, I gave you a pretty good reason. Lots of people want to escape the present moment for something they perceive as better. Governments would want the technology.
I suspect, if time traveler is possible, then the rules change once you develop them. At that point, you might have some receiving areas for time travelers, including trade depots and whatever else. I guess it would depend upon the restrictions and dangers involved.
Assuming it's possible, anyway.