Anyone that argues AGI is possible intrinsically believes the universe is finite and discretized.

I have found Quantum ideas and observations too unnerving to accept a finite and discretized universe.

Edit: this in in response to GO, or Starcraft or anything that is boxed off -- these AIs will eventually outperform humans on a grand scale, but the existence of 'constants' or being in a sandbox immediately precludes the results from speaking to AI's generalizability.