Comment on How long would it take for a ball rolling across the room to bounce off the wall and get back to you - but the room has a time traveling portal halfway through?
crandlecan@mander.xyz 3 weeks ago
Never. It’s in the past?
Why though? In 1969 a ball appeared in the middle of the room, hit a wall and came back towards the portal…
Anything coming “back” (which kind of back?) through the portal was not in your scenario specification…
what if the portal didn’t exist in 1969? The ball travels to 1969 and is unable to come back.
ReginaPhalange@lemmy.world 3 weeks ago
Why though? In 1969 a ball appeared in the middle of the room, hit a wall and came back towards the portal…
Zwuzelmaus@feddit.org 3 weeks ago
Anything coming “back” (which kind of back?) through the portal was not in your scenario specification…
sbeak@sopuli.xyz 3 weeks ago
what if the portal didn’t exist in 1969? The ball travels to 1969 and is unable to come back.