Simulation is not empirical. You cannot swap substrates; brain for computer; and claim that's how a brain, and thus human consciousness works. That would be making a claim about electromagnetism in a computer not human consciousness.

Every effort to look under the hood will get blurry. Because we cannot confirm past and future states on long timescales either direction we end up with Gödel's incompleteness; lack of empirical observation of all past and future information means we cannot prove all statements are true.

Without observation of all particles ever (impossible) there is never resolving "under the hood". So a seemingly superficial daily life description like a feedback loop of sensory input and mechanical response