So how does it work coming back to the "present"? How can you get back to the native worldline you are in initially?
Thanks for the explanation, John. Always loved thinking about time travel but the paradoxes (i.e., you can't meet yourself from the past or bad things happen).
Let's say you were to time travel from 2026 back to 2016 and stayed there for a year or two.
When it was time for you to return back to your 2026, you would turn the machine on and go backward to a moment before you initially arrived in 2016, then immediately throw the machine in "forward" and continue on back to your 2026.
John Titor, Feb 12, 2001: "Getting back to my exact worldline of origin is impossible but it depends on how you define the correct worldline. I can get close enough so neither I nor anyone there would know the difference. It relates to the classic example of cutting a distance in half to reach it. You can always get closer but never there. It also has a lot do with neighboring universes on Penrose diagrams but that requires more math."
So how does it work coming back to the "present"? How can you get back to the native worldline you are in initially?
Thanks for the explanation, John. Always loved thinking about time travel but the paradoxes (i.e., you can't meet yourself from the past or bad things happen).
Thank you for the question BetsyRossRocks.
Let's say you were to time travel from 2026 back to 2016 and stayed there for a year or two.
When it was time for you to return back to your 2026, you would turn the machine on and go backward to a moment before you initially arrived in 2016, then immediately throw the machine in "forward" and continue on back to your 2026.
John Titor, Feb 12, 2001:
"Getting back to my exact worldline of origin is impossible but it depends on how you define the correct worldline. I can get close enough so neither I nor anyone there would know the difference. It relates to the classic example of cutting a distance in half to reach it. You can always get closer but never there. It also has a lot do with neighboring universes on Penrose diagrams but that requires more math."
Differential equations and calculus…ugh…