> How do you think that people think? If there is nothing beyond the physical world, then the way people think is just physical interactions between microscopic particles. Those can be simulated by a powerful-enough computer.

I believe nearly all propositions about people thinking are unintelligible.

I also believe propositions about going beyond the physical world are unintelligible.

If you’re taking about parts of software, I fail to see how you are not talking about algorithms. The use of the word “simulation” seems completely irrelevant to me.

> So, no, "know" and "think" are not labels for an algorithm, but labels for things that can happen inside brains,

Or are using the word “think” to identify some phenomena I can observe with a brain and a microscope?