To ”truly” scale we need a system directly doing calculation on some fundamental property of matter. Quantum computing is _close_ but suffers from a lack of int

To ”truly” scale we need a system directly doing calculation on some fundamental property of matter. Quantum computing is _close_ but suffers from a lack of interpretability: how would we know if our quantum simulation of the universe would include the quantum computer doing the simulation, as well as another recursive copy of the simulation, and another, and another…