> 1 + 1 != 3 only because we agree on notation to represent the real, physical world; "right" and "wrong" aren't in the same category, because they're matters of opinion, and for practical purposes on the time scale of individual human lives, might indeed does make right.

You're arguing over the meaning of symbols, whereas I'm talking about the underlying concepts. The map is not the territory. Right and wrong are not matters of opinion... unless you really do think that it's ok to rape someone as long as you're never caught.