I guess I don't understand your intuition. My intuition: Teleport to Mars. Wait ...

senectus1 · on April 10, 2023

>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 · on April 10, 2023

You should probably start drawing diagrams or whatever.

sunaurus · on April 9, 2023

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 · on April 9, 2023

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 · on April 10, 2023

They never said they wait to watch themselves leave, just watch themselves on Earth (3 minutes before they left).

maxerickson · on April 10, 2023

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.