Why Quantum Information is Never Destroyed
Why Hacker News recommends it
HN commenters point to it as an accessible explanation of abstract modern physics around the black hole information problem.
What it is
A PBS Space Time episode asking whether the universe's information can ever truly be lost, tying quantum mechanics, determinism and black holes together. It sets up the black hole information paradox.
Recommended by 2 HN commenters across 2 different months, 2019 to 2021.
What Hacker News said
Recommends tzs · 2021-05 · on “Physicists identify the engine powering black hole energy beams”
I'd recommend the two episodes released right before the one about the black hole information paradox too. They set up for what is covered in the information paradox episode. "Why Quantum Information is Never Destroyed" - [this video] "What Survives Inside A Black Hole?" - [LINK] Maybe the episode before those two also. I vaguely recall that something from the information paradox episode used something from that (and if I'm misremembering, it was still a neat episode): "Noether's Theorem and The Symmetries of Reality" - [LINK] I have a question about the episodes you cited. They cover how beyond the event horizon space becomes time and time becomes space. They go over how that means that inside y
Recommends f154hfds · 2021-08 · on “Physicist discovered an escape from Hawking’s black hole paradox”
For those of you like me having trouble with the abstract nature of modern physics, I have to recommend the relevant PBS Space Time on the subject: [this video]
Cites westurner · 2019-08 · on “How do black holes destroy information and why is that a problem?”
"Why Quantum Information is Never Destroyed" re: determinism and T-Symmetry ("time-reversal symmetry") by PBS SpaceTime [this video] Classical information is 'collapsed' quantum information, so that would mean that classical information is never lost either. There appear to be multiple solutions for Navier-Stokes; i.e. somewhat chaotic. If white holes are on the other side of black holes, Hawking radiation would not account for the entirety of the collected energy/information. Is our visible universe within a white hole? Is everything that's ever been embedded in the sidewall of a black hole shredder? Maybe even recordings of dinosaurs walking; or is that lemurs walking in reverse? Do 1/n, 1/∞, a