My Python code ultimately runs on a circuit, but it feels lacking to say that my program
is the circuitry. The program itself only has meaning inside of my mind, and in fact could exist equally well on paper. It exists
conceptually even if it never manifests physically. So where do concepts like this exist, given that they don't exist as matter? What do we mean when we say that something like 1+1=2 is true - that that truth exists - and would exist even if there wasn't any matter to have 1 and 1 of?
The more you look at it, the more it looks like truths and ideas are even realer than the material world. After all, the only thing we know of the material world is what we experience of it in our mind. That was Plato's point, that the material world is a shadow of the real, immaterial world of thoughts, ideas, and truths.
Similar argument patterns permeate most ancient philosophies. The meme is that mind is the ultimate reality, of which the materialistic worldview is a surprisingly fragile inverse.