News for hackers. Stuff that matters.

A comment on I stopped working on black hole information loss. Parent comment

Re:I stopped working on black hole information loss by noslenwerdna on Saturday April 23, 2022 @01:24PM (#31136239)
General relativity is not linear algebra. Just glancing at the underlying equations, you can see they are non linear. [https://en.wikipedia.org/wiki/Einstein_tensor]

The same is true for quantum field theory. I'm curious why you're so confident that they are "in fact both linear algebra"

[ Parent | on HN ]
Re:I stopped working on black hole information loss by paulpauper on Saturday April 23, 2022 @10:46PM (#31140839)
they involve matrices
[ Parent | on HN ]
Re:I stopped working on black hole information loss by hither_shores on Sunday April 24, 2022 @09:28AM (#31143757)
They also involve addition, but that doesn't make them arithmetic. Knowing linear algebra gets you perhaps 10% of the way to having the math background for a first course in GR.
[ Parent | on HN ]