Comment Re:Opensource remake (Score 1) 93
"Clearly not concerned about the AI's performance?"
It uses Python, indeed. And for the computationally intensive tasks, it uses numpy and theano. Theano is general symbolic computation framework that will automatically accelerate your vector computations on a nearby GPU, etc.
I don't know how it compares with (likely Lua, torch-based) deepmind's implementation. But assuming that scientific python programs actually do their expensive computations in the Python VM is really rather silly.