That what I figured out too. Sometimes it feels weird to be the first one posting some popular contents to Lemmy. Normally, those contents would be on Reddit the moments it aired.

He’s back.

Yeah, from what I understand. If it an one-off encounter (annihilate each other), then tit for tat will lose most of the times. That is original version Prisoner’s dilemma and the answer for that version is you all should betray each other. When the scenario is not an one-off encounter but a repeated once then tit for tat will win most of the times.