So I'll give you an example. If you're in a time travel universe where every point is causally related to every other point, you're never going to get a theorem like this to go because you'll have one model which allows for time travel over here where every point is related to every other. So that's some causal structure. And you can have another over here where maybe it's the same model, but then I yank out some points. So now the topology is
- Concept
- topology
- Score
- 5 · never · because
- Status
- candidate — not yet promoted to canon
Corpus evidence — top 10 passages
Most-relevant passages from the entire indexed corpus (67,286 paragraph chunks across YouTube transcripts, PubMed, arXiv, archive.org, Stanford Encyclopedia of Philosophy, OpenAlex, and more) ranked by semantic similarity (bge-small-en-v1.5).
- 01 · yt0.886
So now the topology is all messed up. These are going to have the same causal structure because every point is causally related to every other in both of them. So there's a causal isomorphism. They have the same causal structure, but they have very different topologies. And the beauty of what David did is he said, how weak can we go here in terms of what's the minimal level of causal structure that we need to show that causal structure determines the shape of the universe? And so he went to work on …
yt/iGOGxaZZHwE-it-s-not-that-we-don-t-know-it-s-that-we-can-t/transcript.txt
- 02 · blog0.829
See the above-mentioned entry on Newton’s view of space, time, and motion as well as the entries on Leibniz’s philosophy of physics , classical theories of absolute and relational space and motion , post-Newtonian theories of absolute and relational space and motion , and the hole argument. 3. The Topology of Time It’s natural to think that time can be represented by a line. But a line has a shape. What shape should we give to the line that represents time? This is a question about the topology, or structure, of time. One natural way to answer our question is to say that time should be represe…
blog/plato-stanford-edu/time.md
- 03 · yt0.821
And you see, there are if you can have a time-like curve connecting one event with another one, then it can causally affect it. Whereas, if it's space-like connected, there's no time-like curve connecting them, then you can't causally affect it. So, there's a whole sort of body of theory which was taken over by other people and they developed in other ways of what you call causal sets. Where you may not think about continuous manifolds. They can be just sets of points with their causal connections and so on. I'm only mentioning this because I was worrying about this in connection with making i…
yt/vC4HNcqTQXk-roger-penrose-on-mind-consciousness-closer-to-truth-chats/transcript.txt
- 04 · yt0.817
Let me explain one an example of one thing that you can see two things you can see. So there are a bunch of physical effects that people know about which end up with very kind of mechanical explanations in these models. So for example, time dilation. So in relativity, a thing that's going fast, time seems to be running slower for it than something which is standing still relative to relative to the observer so to speak. And so how does one understand that in these models? Well, the if you have a thing like a particle that is made from a whole sort of tangle of pieces of this network, then that…
yt/OWyugUdBups-stephen-wolfram-computation-at-the-foundations-of-everything/transcript.txt
- 05 · yt0.814
You can collect evidence forever, any kind of empirical evidence you could ever imagine. And the idea of that not being enough to pin down what the universe is like, that's something that naturally pops up in theories of space and time. So I don't think GR is special here. I think you can prove a similar kind of theorem pretty much in any space-time theory that's modeled on a manifold with geometric structures on it. So a Newtonian version of space-time physics, you'd have similar results there. So I …
yt/iGOGxaZZHwE-it-s-not-that-we-don-t-know-it-s-that-we-can-t/transcript.txt
- 06 · yt0.813
It's those kind of chains where there's for one state, you go only to one new state, the same one all the time, and that always goes to the same new state. So, you cycle. So, those have the right Lorent contraction, the same as the um as the time contraction. But what's interesting is so so so now I've been working uh on this. It looks to me like I can now embed these end cycles into it looks like I can boot up manowski space entirely from them. So, so we we haven't proven the theorems. You're not done until you're done. But, but I see no obstruction. Looks it looks to me I would say 99.99% no…
yt/Hf1q-bZMEo4-what-are-traces-of-consciousness-a-new-breakthrough-unifying/transcript.txt
- 07 · blog0.811
The point events \(e'_1\) and \(e'_3\) on the left of Figure 7 are space-like separated, while, on the right picture, \(e'_1\) and \(e'_3\) are with respect to each other neither causally future nor causally past nor causally contemporaneous. Within a given history, then, space-like separation is just incomparability, which agrees with the corresponding definition in relativistic space-time. The relatively simple framework considered in this section is widely developed in Belnap, Müller, and Placek (2022) and in other works to obtain a rigorous theory that combines relativity and indeterminism…
blog/plato-stanford-edu/branching-time.md
- 08 · yt0.808
Sure, but there are some questions in there that perhaps you can illuminate me on, because where does the causal structure come from? Because just naively we could live in a Newtonian universe in which there isn't a speed of light limit on the speed with which signals can transmit from location to location. How does your model eliminate that logical possibility? Or, is it simply that's another set of rules that do not yield the Einstein equation? No, I don't think you could make a version of the mod…
yt/yAJTctpzp5w-can-space-and-time-emerge-from-simple-rules-stephen-wolfram-/transcript.txt
- 09 · yt0.807
But the thing is is that figuring out this hierarchy is tough for physicists because they're so trapped in spaceime that they're they're focused on size. So if you see people trying to come up with a theory of everything all the time, uh it's like atom, molecule, cell, organism, planet and then you know galaxy or solar system then galaxy and then universe. This is focused on size. So you're not actually this is not a fundamental theory because it is it is built on the axiom of size already you know existing as an axiom or as a you know presupposition and that is not fundamental. So you have to…
yt/HUDEUJgZzew-vertical-causation-scientism-wolfgang-smith-richard-smith-ka/transcript.txt
- 10 · yt0.804
So it's as if these realms approximately are parallel to each other in the sense that the odds of them coming back together and affecting each other, exponentially drops very close to zero. What would that be lacking, in your way of describing things right now? - Yes, so it's lacking the structure that you've introduced after saying what it is. You said it's a Hilbert space, and the state is a structure in that Hilbert space. And then everything you said after that is not derived from the fact that it's a Hilbert space. It's derived from the fact that the Hamiltonian takes a certain form. Why …
yt/Af5LICjFIBc-what-is-quantum-mechanics-really-telling-us-world-science-fe/transcript.txt
Curation checklist
- ☐ Verify excerpt against source recording
- ☐ Tag tier (axiom · law · principle · primary derivation · observation)
- ☐ Cross-cite to ≥1 primary source (PubMed / arXiv / archive.org)
- ☐ Promote to
bucket-canon/01-mathematics/