Everyone who is not brain dead has direct experience of what consciousness is. It's the only thing that is directly experienced, in fact. Everything else is second-hand.
Everyone who has a computer has the same level of understanding about what a computer is? Mental.
You're missing the point so badly, I'm not even sure where to begin.
And I felt the same about your comment, but I still tried my best to explain where I think you're delusional.