Take a twin, put it on a rocket and make the rocket orbit around the earth at the light of speed (with a convenient reason that explain how you did it and why the rocket didn’t just disintegrated or other bad stuff) then make him get on earth again and boom! He will see his twin which is a older version of him rn
You don’t even need to go near the speed of light. Modern gps satellites already have to account for relativity. It wouldn’t be seeing yourself significantly older, but it’s a measurable distinction.
Take a twin, put it on a rocket and make the rocket orbit around the earth at the light of speed (with a convenient reason that explain how you did it and why the rocket didn’t just disintegrated or other bad stuff) then make him get on earth again and boom! He will see his twin which is a older version of him rn
You don’t even need to go near the speed of light. Modern gps satellites already have to account for relativity. It wouldn’t be seeing yourself significantly older, but it’s a measurable distinction.
Just going to a weekend trip to the mountains can give you a few nanoseconds difference: http://www.leapsecond.com/great2005/tour/
Well yeah, but for a very noticeable difference you either gonna need a lot of time or a lot of speed
I’m going with a lot of speed. I love drugs!