“Digital physics proposes that quantum mechanics and general relativity can be reconciled by showing that they’re both emergent properties of a more fundamental system composed of a finite number of discrete elements interacting via simple rules.”
“Why discrete elements? Because the math we have for understanding finite systems is robust and well-understood.”
This is supporting the idea “let’s model the universe as consisting of finite elements” But it doesn’t support the idea that “The universe is actually made up of finite elements”
Is there really pushback in modeling the universe as a mesh of finite elements? You are right, we do it for everything else, so why not?
But the claim that the universe is actually made up of finite elements is a leap, and history is a wasteland of finite elements as atoms, gave way to subatomic particles, which gave way to new forces, even smaller particle, and particles with even stranger properties.
Its even more spurious of a claim when, “ It doesn’t claim to know what those elements are or what rules drive them.” This means that claiming that the universe is actually made up of finite elements isn’t really based on anything.
There is a lot to learn from models, models that are verified and shown to predict and reflect experienced reality are super important. But I dont see how the jump to a finite element universe actually existing gets there. If that is where the pushback is, well, I get that.