I don’t think having no information about the other player is part of PD. If you do, then it’s not academic at all- it’s a key difference in a definitional distinction that is important!
After those 99 rounds have been played, is the game PD or isn’t it?
Oh, and if you pick me to participate in the closest approximation of PD that you can provide, I will cooperate, take my reward (if any), and then explain that the differences between the approximation and actual PD were key to my decision- because I prefer to live in a world where cooperation happens in pseudo-PD situations.
I’m not in an abstract game. I only play games with some concrete aspect. If you asked me, on the street, to play a game with a stranger and I recognized the PD setup, I would participate, but I would not be playing prisoner’s dilemma- I would be playing a meta-version which also has meta-payoffs.
I don’t think having no information about the other player is part of PD. If you do, then it’s not academic at all- it’s a key difference in a definitional distinction that is important!
After those 99 rounds have been played, is the game PD or isn’t it?
Oh, and if you pick me to participate in the closest approximation of PD that you can provide, I will cooperate, take my reward (if any), and then explain that the differences between the approximation and actual PD were key to my decision- because I prefer to live in a world where cooperation happens in pseudo-PD situations.
No, it isn’t. But someone who defects in ordinary PD might defect the last round in IPD for the same reasons. I certainly would.
You are looking for excuses instead of considering the least convenient possible world. Would you cooperate in this problem?
I’m not in an abstract game. I only play games with some concrete aspect. If you asked me, on the street, to play a game with a stranger and I recognized the PD setup, I would participate, but I would not be playing prisoner’s dilemma- I would be playing a meta-version which also has meta-payoffs.