The programming talent myth

Evidence, please? We see very definite use of fire by about 0.1Mya; it almost certainly had been in use for longer than that, but even without going into more, er, optimistic claims, where have you seen a waterskin older than 1e5 years? I'm not saying that it's impossible (preservation in a bog, perhaps, or indirect evidence like stoppers), but all examples I've heard about are considerably more recent...