Can Black Holes Unify General Relativity & Quantum Mechanics?

The devs adding in a firewall plugin to stop dupe exploits is very on brand with our universe

I like that this basically seems to boil down to, "it's not a crime if you don't get caught." Just on a universal scale.

Babies without object permanence: if I can't see it It doesn't exist Physicists: Maybe you're right!

Poor Alice and Bob! But still...WHAT A WAY TO GO!!!

I listened to Susskind's lectures many times. If you put an iPhone into a blender, an iPhone still comes out, even if it's not an iPhone anymore. At least technically speaking, per the math, it's very possible that there's no violations. For our reference frame as observers though, we lose Alice, the qubit, and the iPhone. But we do get to keep the free blender.

This description of black hole complementarity reminded me of superposition. A sort of simultaneous existence that is "allowed" by the impossibility of observing more than one outcome.

That scene in Spaceballs with Colonel Sanders and Dark Helmet about "Now" was always hilarious to me. The more I learn about Relativity, I realize that scene is actually scientific haha

It seems like Horizons in general represent a much more fundamental mechanism than people give them credit for. Based on the Unruh effect and black hole complementarity, it seems like one could reasonably say that beyond any horizon is effectively not a part of the same universe anymore.

My . . . brain . . . hurts . . .

Alice and Bob, the favorite guinea pigs in theoretical physics.

Has it ever been difficult to create the 'space-time' bit at the end of each episode? It's always done so well.

People are going nuts about Terrance Howard right now. I’ve spent the last 2 hours arguing with people in the comments of his videos about why he’s clueless about physics. He’s brining in a lot of people to gobbledygook with his charisma. I had to watch this video like 4 times to make me feel better again. Thanks Matt! I would love to see a video on pseudoscience or Terryology from you- I know that’s not your game normally but it’s really bad out there right now.

What ever happened to comment reads/responses? That was one of my favorite parts.

I don’t even remember subscribing to this channel, but I’m glad I did. Will pay more attention to it from now on. Funnily enough, today I was listening to Sean Carroll interview Leonard Suskind in his podcast.

Alice and Bob are built different, man.

That firewall is interesting. We gotta exploit that

perfect! literally just finished watching the previous episode, went "well DARN I want to learn about this more!" and BAM you upload the next episode! Always lovely for a coincidence like that to happen!! (I even looked up Black Hole Complementarity)

It feels like the explanation of BHC implies it wouldn't only apply to black holes and the spaces outside them, but also to any regions of space which can no longer be causally linked. For instance, two galaxies that drift so far apart the light from one would never reach the other. There doesn't appear to be any functional difference between these pictures. Am I missing something? Because the implications of this are kind of wacky.

This one will have to get watched multiple times. Appreciate your work and keeping this a higher level discourse. 🙏

This contradiction actually sounds surprisingly similar to Godel's incompleteness theorem for arithmetic. The idea there was that a sufficiently complex system, such as arithmetic, cannot be both fully provable using that same system and also self-consistent. In other words, one had to choose either self-consistency (assumed by Godel to be non-negotiable) or full provability (also called completeness, hence the incompleteness theorem). The reason why there was such a contradiction between provability and consistency was the existence of arithmetic statements whose interpreted meaning within the system is "I am unprovable". To prove it means to prove its meaning to be true, namely that it is unprovable, a contradiction that destroys self-consistency. Failure to prove these statements leads to a lack of complete provability, since these true arithmetic statements cannot be proven within the laws of arithmetic. Translating this to the context of the video, it seems that the complex system we are analyzing is the universe itself, and the proving method is that of observation (or interaction). Qbits that enter a black hole form Liars paradox statements within the universe, i.e. they are interpreted as "I am unprovable", which in turn would be interpreted as "I am unobservable". To avoid the lack of self-consistency, we must therefore affirm that such statements are in fact unprovable, unobservable. This helps to show how strange such an idea is, since it seems that, by affirming that such statements are in fact unprovable/unobservable, their meaning is actually true - its just that we can never prove that truth without that proof leading to contradiction.