News for hackers. Stuff that matters.

A comment on Paradox-free time travel is theoretically possible. Parent comment

Re:Paradox-free time travel is theoretically possible by ricardobeat on Thursday January 21, 2021 @07:13AM (#25858080)
> pump energy at your destination

What does that even mean? This is the kind of hand-waving the OP was pointing out.

He probably meant the first law.

[ Parent | on HN ]
Re:Paradox-free time travel is theoretically possible by littlestymaar on Thursday January 21, 2021 @07:36AM (#25858217)
> What does that even mean

Any variation on this: “sending this item in the past, will grab the same amount of mass from the past, taken at random in a way that preserve the energy on both ends”

[ Parent | on HN ]
Re:Paradox-free time travel is theoretically possible by 194765 on Thursday January 21, 2021 @08:21AM (#25858519)
So like the gate of truth from Fullmetal Alchemist?
[ Parent | on HN ]