Is the argument only about turing machines, or about any non-biological machine we could build? Turing machines don't include for example random generators nor

Is the argument only about turing machines, or about any non-biological machine we could build? Turing machines don't include for example random generators nor parallelism, but we can build both of those. I'm talking about anything we could build. I do not believe in something magical (unbuildable) that biological cells or human beings have, so with enough technology we could build something that understands just like the brain does. If the brain can do it, nothing stands in the way of something else doing it. Maybe the brain uses for example some quantum mechanics we don't yet fully understand, but we'll still be able to technically use it once we know how, it won't be magically limited to only human brains. EDIT: ok if the argument is really only about turing machines and that is what is meant by "program", that should be indicated a bit more clearly imho, because computers are not turing machines (nor is the brain), they're less powerful in one way, yet have more features in other ways :)