I don't think that's entirely fair. I'd bet that with a reasonably sized team, good introspective tools, and several years, you could reverse engineer what each

I don't think that's entirely fair. I'd bet that with a reasonably sized team, good introspective tools, and several years, you could reverse engineer what each part of a network does. Of course that's only a gut feeling, and there'd be no way of proving it was accurate.