Sure, System 2 is your CPU and System 1 your GPU. System 1 can make you Ramanujan, and System 2 can make you Yudkowsky. It is System 2 that shuts up and multiplies, that debugs and steers. If our AIs end up having them, I expect us to die because of our failure to interpret its System 2, not 1.

Please elaborate 'the best "simplified" way of looking at human intelligence is how well your "System 1" performs (approximately) Bayesian inference'