Not by default. From what I’ve seen, though, few PD tourneys are arranged in such a way that the competing programs can know which move is the last, so there’s less evidence available.
It depends on what you know about the person you are playing with. You do know something, even if it is just a probability distribution. Different distributions give you different strategies.
Hm...
(Actually, what does TDT/UDT say about this? I imagine it’s something like “always cooperate with other TDT users; for everyone else, tit-for-tat.”)
That’s the same as just tit-for-tat.
Maybe? Does tit-for-tat have the utility-wasting “defect on the last move” injunction?
Not by default. From what I’ve seen, though, few PD tourneys are arranged in such a way that the competing programs can know which move is the last, so there’s less evidence available.
I just compared “always cooperate with other TDT users; for everyone else, tit-for-tat” to ‘tit-for-tat’ in the case that’s what TDT says.
It depends on what you know about the person you are playing with. You do know something, even if it is just a probability distribution. Different distributions give you different strategies.