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I guess I don't understand your intuition. My intuition: Teleport to Mars. Wait 3 minutes to watch myself go poof on Earth. Teleport to Earth.

I guess I don't understand your intuition. My intuition: Teleport to Mars. Wait 3 minutes to watch myself go poof on Earth. Teleport to Earth. If I arrive back on Earth just after I went poof, then I'm pretty sure I went backwards in time a couple of minutes.

sunaurus 4y ago
If you wait 3 minutes on Mars, why would an instant teleport back to Earth result in you arriving just after you went poof rather than 3 minutes after you went poof?
- maxerickson 4y ago
  Well, the point is more that you have to wait 3 minutes on Mars if you want to watch yourself leave. But say instead of waiting you just keep going poof.
  - SAI_Peregrinus 4y ago
    They never said they wait to watch themselves leave, just watch themselves on Earth (3 minutes before they left).
    - maxerickson 4y ago
      I mean, it's completely logical that if you get to Mars faster then light, you can watch yourself start the trip, but why does this also mean that you are actually going back in time? I'm the one that introduced the 'start the trip' condition, and they used it in their comment.
senectus1 4y ago
>If I arrive back on Earth just after I went poof, then I'm pretty sure I went backwards in time a couple of minutes. How? Teleport in this context is an instant transportation process. but the image of you going poof is not ists a speed of light. Like If I throw a ball at a target first THEN Fire a gun at the same target, the bullet will get there first but it didn't time travel to do that. Lets assume that the teleport process is a wormhole or a folding of space process that reduces the distance between the two locations rather than making you go faster. You could step through onto mars and back again and not see yourself when you arrive back but then go back to mars again and see yourself disappear and re-appear twice. still no time travel. You're just watching a delayed image.
- maxerickson 4y ago
  You should probably start drawing diagrams or whatever.

sunaurus 4y ago

If you wait 3 minutes on Mars, why would an instant teleport back to Earth result in you arriving just after you went poof rather than 3 minutes after you went poof?

maxerickson 4y ago
Well, the point is more that you have to wait 3 minutes on Mars if you want to watch yourself leave. But say instead of waiting you just keep going poof.
- SAI_Peregrinus 4y ago
  They never said they wait to watch themselves leave, just watch themselves on Earth (3 minutes before they left).
  - maxerickson 4y ago
    I mean, it's completely logical that if you get to Mars faster then light, you can watch yourself start the trip, but why does this also mean that you are actually going back in time? I'm the one that introduced the 'start the trip' condition, and they used it in their comment.

senectus1 4y ago

>If I arrive back on Earth just after I went poof, then I'm pretty sure I went backwards in time a couple of minutes. How? Teleport in this context is an instant transportation process. but the image of you going poof is not ists a speed of light. Like If I throw a ball at a target first THEN Fire a gun at the same target, the bullet will get there first but it didn't time travel to do that. Lets assume that the teleport process is a wormhole or a folding of space process that reduces the distance between the two locations rather than making you go faster. You could step through onto mars and back again and not see yourself when you arrive back but then go back to mars again and see yourself disappear and re-appear twice. still no time travel. You're just watching a delayed image.

maxerickson 4y ago
You should probably start drawing diagrams or whatever.