alt Hacker News> The only reason why this is done in the first place is because the number of electrodes in the dish is pitiful and has no chance of describing something as complex as Doom.
This sounds a bit suspicious though. If we're confident that the neurons aren't complex enough to understand Doom, how can they be said to be complex enough to play it? Playing a game is a loose term but it seems difficult to say that it is playing something that it can't comprehend or interact with. By analogy, if there was a CNN between me and a game of Doom people would say "roenxi is cheating with an AI aim-bot", not 'roenxi is playing Doom".
The whole thing is still pretty cool though. Hopefully the neurons are having fun, I'm sure we all wish them what happiness they can muster.
There isn't enough input electrodes to encode a doom frame into the multi electrode array without compression.
That's all the artificial neural networks are doing.
If we could have gotten an MEA with 320x200 electrodes we wouldn't have used any encoding and just let the neurons figure it out. Instead it is an 8x8 grid.