David Galbraith Profile picture
Technologist and VC, former architect. Invented these (i.e. link in bios: https://t.co/xBmFQEvMhb), among other things.

Jun 9, 2020, 8 tweets

.@stephen_wolfram theory not everything, so far:
> The universe is a computer
> As in its operation creates itself
> From rule based iteration on a node graph

> We can't predict the future from knowing this as it would require a the universe to compute it
> And we can't have a meta computer that could do so, as it couldn't be part of or connected to the universe

> Of the possible rules that can operate on the node graph, each creates a universe, and one is the actual rule that creates ours.
> Luckily there is enough compression that we can go looking for the rule without needing a spare universe to model it.

> By iterating through candidate node connection possibilities for both the graph shapes that create 'space' and the rules that determine the causality that creates options for these shapes (didn't really grok diff between 'space' graph and causality graph)

> We can create a universe that represents space and determine its dimension from the topology.
> Rules can create spaces with fractional dimensions, but the true rule we are looking for should have three dimensions (time is not the same and is the computation itself).

> The universe created has a clock speed (time as changes), an entanglement rate (when not causally connected graph changes become causally connected again) and a minimum length (much smaller than Planck length).

> Unlike Quantum Theory which is non deterministic but discrete, or General Relativity which is deterministic but continuous the universe computer operates in a world which is deterministic and discrete.

> This universe computer can, however, derive both quantum theory and general ans special relativity.

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