Really great reader conversation about Elon Musk's belief that we're already in a simulated reality. Here's a smart point by longtime reader "Galatea", who pushes back at my skepticism that consciousness probably can't be simulated:
To make a convincing argument that you can't simulate consciousness, you must make a convincing argument that you can't simulate physics, or that consciousness arises some something other than the physical (e.g. a soul). If you're committed to materialism, your only course to save this argument you're making is to make a convincing argument that basic physics is impossible to simulate, because once you can simulate that, you can simulate anything and everything that exists in the material universe, with enough processing power.
Very valid point. I'd answer that from a slightly different direction, and say that it's likely that consciousness only arises from living creatures as an evolutionary adaptation. Or as philosopher Alva Noë puts it: