[nindalf]

Some of the comments in the thread are the usual HN contrarianism - "oh, this isn't impressive because X, Y, Z".

This is not the case. What OpenAI have accomplished is extraordinary, ~~especially the part where there is no explicit communication between the bots~~ (not true, see below). They managed to coordinate simply by looking at what the others were doing.

Did they make elementary errors? Yes they did. Did they fail to grasp the strategy of avoiding fights that the humans used? Yes they did. The fact is that even a rank amateur like me (90th percentile when I was playing) wouldn't have made those mistakes. But I still strongly believe that what has been achieved so far is nothing short of extraordinary. Judging by their rate of progress[1] I would not be surprised to see them come back in a few months with these problems figured out, capable of beating the best teams.

[1] - https://twitter.com/OpenAI/status/1037765547427954688

[qwert7890]

> They managed to coordinate simply by looking at what the others were doing.

This bit seems incorrect, https://medium.com/@stelmaszczykadam/do-openai-five-dota-2-b....

[Ajedi32]

In Dota you have perfect information of the state of all allied units, so I think it's debatable whether sharing input (observation) data between the bots really counts as "communication".

Though that same fact also means communication shouldn't really be necessary; the bots are all exact copies of each other and share a copy of the game state, so they should all have similar ideas of what actions are optimal at any given point in the game.

[qwert7890]

Thank you Ajedi32, I updated the post https://medium.com/@stelmaszczykadam/do-openai-five-dota-2-b....