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Wolfram Physics Project: Update with Q&A Tuesday, Oct. 19, 2021

0:00 Stream starts 2:17 Stephen presents the project update 1:57:01 Are any of the rules reversible after having ran for a significant amount of time? Could current observations in the Universe help "run back" time further than Physics already has toward the Big Bang? 1:59:02 Are observers bound fundamentally by their ability to compute or more simply by their practical ability to make measurements? 2:01:26 Would love to hear your thoughts on how biological evolution are explained in your models! 2:03:58 How do you think "Ruliology" relates to "Category Theory"? 2:06:43 Could the white (missing) areas in the cellular automata represent computational reducibility? 2:07:23 At first glance, it seems as if relativity requires causal invariance, whereas quantum mechanics requires the fact that different threads of Computation exist. What's the key idea linking these two? 2:09:18 Are there any symmetries / conservation laws observed or assumed in your conceptual framework? 2:11:20 ​What pushes the updating/time? Why does it evolve at all? 2:12:46 ​What is retrocausality and what does the project hint at in those terms? 2:13:00 If nature is finite and digital, then is the Friedmann cosmological model necessarily wrong? 2:13:54 If we could derive a dimensionless metric such as the Fine Structure constant; could that be useful with our model? 2:19:09 Could gravity be a result of your fundamental areas of space being updated asynchronously, where more matter per area of space (or more 'active' elements of space), require more computational time? 2:19:52 Is there hope that AI can somehow be intelligent enough to either simulate or via simulation understand these concepts as something else beyond a computationally bound observer? 2:24:53 What would be (even hypothetically) the mechanism by which the causal structure of a chemical reaction could be extracted, e.g. within a ribosome? 2:26:46 Can you say something about dark matter or dark energy based on your model? 2:28:26 ​Why isn't sequentialisation of time a consequence of computational reducibility of the observer? Enforcing confluence via K-B completion dramatically reduces the computational complexity of an ARS... 2:30:55 Is the information idea of entropy (number of similar states, etc) related to the number of threads of time giving a similar state in a multicomputational model? 2:33:58 NKS seems to have stopped very close to where the Physics Project started\[Ellipsis]what was the big challenge in starting the Physics Project? Getting the right perspective? Some specific results? The team? 2:41:53 You need to arrange for Susskind and Lee Smolin to have a discussion pertaining to String Theory, Multiverse, Quantume Gravity, etc. Smolin says physics is stuck, Susskind celebrates it 2:42:50 ​Could areas of philosophy be considered repositories of physical intuition when considering the definition of the observer? 2:43:54 Time dilation arising from some of the computation being towards updating in a new place sounds a lot like the 4-velocity being directed more towards space rather than time. Is there a relation there? 2:44:32 What do you think is the physical significance and manifestation of arrows in the hypergraph notation? 2:46:26 Can you compare and contrast the ruliad and the infinity groupoid? Would the universe be more efficient if it really were a hypercomputer and just provided the answers without actually doing all the computation? 2:48:36 How are waveforms/oscillation emergent from hypergraph rewriting? How does the universe implement hypergraph isomorphism also so central to the hypergraph rewriting formalism? How are spectral effects like colour and its qualia to be understood? 2:50:32 ​What does the project imply about the Big Bang? Does "cooling of dimensionality" allow universal expansion? 2:52:10 Is curvature in the hypergraph inherit around matter because of the addition of edges above the limit of space without any graviton or is it higher in the limit because of something like gravitons or even oligons? 2:57:55 Ever thought about taking psychedelics to help you with your project(s)? 2:58:32 Does the Ruliad structure imply an intelligent designer? 3:00:12 ​Could objective collapse theories, Diósi-Penrose, be generalized by the WP model by considering rulial space trajectories which locally vary the ratio of Rule[...] to TwoWayRule[...] w.r.t observers? 3:01:15 Indeed experiments; I am an experimental physicist. Is there way to translate your concepts to the level of condensed matter physics yet? What can be a superconductor phase transition in your model? 3:03:47 Layman here, what energy is being used when a sequence of time changes from one to the next? 3:04:55 Would the speed of entanglement be something you could observe in black hole mergers? 3:06:47 It seems like the physics project has so much momentum, will it be the focus indefinitely from now on or is more technology needed?