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I'm also curious what sort of results the iterative process can lead to. The movie script example in OP is impressive, but does it reach a stable state? Does it work for other types of prompts (coding related/other) that i've seen on twitter? All very interesting.
Marion Tinsley was world checkers champion from 1955-1958, then took a break, then again from 1975-1991, when he resigned in protest (at age 64). He was utterly dominant; indeed it is hard to think of a competitor in all of history more dominant over his sport or game than Tinsley.
In 1990 Tinsley decided to play Chinook, the best checkers computer program in the world. Chinook had placed second at the US Nationals so it had the right to enter the world championships, but the US and British checkers federations refused to allow it.
So Tinsley resigned his title. Tinsley then played Chinook in an unofficial match (which he won).
This power play really stuck it to the federations: nobody wanted to be named the new world champion knowing Tinsley was fully capable of crushing them. Eventually everyone came to an agreement to let Tinsley be the "champion emeritus".
Tinsley played Chinook four years later, at age 68, still probably the best player in the world. But in the middle of the match he complained of stomach pains and withdrew after only six games (of 20), all drawn. Tinsley's pains were real: he later died of pancreatic cancer.
Minecraft with buddies online is amazing.
Towerfall ascension campaign. Made by developers of Celeste (so it has A++ feeling controls). Single screen single hit kill defend against waves of enemies in several worlds. Good difficulty progression. And 4 player VS is a blast.
Not coop but vs: Duck game. Works best with 4 ppl, high skill based, super silly single screen instant hill tournament. Playing this with buddies is consistently the most fun I have had in 10 years of playing games.
Gang beasts. Very very silly, not skill based last man standing brawler on interactive maps.
Party games like jackbox can be super fun, including gartic phone, skribbl.io, cards against humanity.
I guess we sort of got it with Slack though