Don't forget about the incomplete specification problem: You wanted non-radioactive gold for your jewlery and dental fillings? Oops, sorry about that.... (ht

Don't forget about the incomplete specification problem: You wanted non-radioactive gold for your jewlery and dental fillings? Oops, sorry about that.... (https://en.wikipedia.org/wiki/Isotopes_of_gold https://en.wikipedia.org/wiki/Isotopes_of_gold)