[asdflkj]

You're "not talking about how we build them", but you were responding to my post where I am talking about how we build them. I'm gonna say it again: I don't understand this tendency to shift attention away from the "how"--rather insistently, in your case.

[calcnerd256]

Either you're not just talking about how we build them or I misunderstand you, because the first thing you said was, "Mathematics is a product of the mind."