News for hackers. Stuff that matters.

A comment on Physicists rewrite the fundamental law that leads to disorder. Parent comment

Re:Physicists rewrite the fundamental law that leads to diso... by leephillips on Thursday May 26, 2022 @12:17PM (#31520179)
The direction of time is just a convention, and the laws of physics are (still, as far as I know) time-reversible, so this is really irrelevant. You need an energy source to make anything, including life.
[ Parent | on HN ]
Re:Physicists rewrite the fundamental law that leads to diso... by pfortuny on Thursday May 26, 2022 @12:38PM (#31520445)
All except for (precisely) the heat equation, which is not time-reversible (there is a “loss of information” as time passes, very badly and roughly speaking).

See https://math.stackexchange.com/questions/628720/why-heat-equ...

[ Parent | on HN ]
Re:Physicists rewrite the fundamental law that leads to diso... by leephillips on Thursday May 26, 2022 @12:52PM (#31520625)
The heat equation is not a law of physics.
[ Parent | on HN ]