GPT-3 strikes me as the human fast thinking process, without the slow thinking process to validate and correct its answers. It is half a brain, but an impressive half at that.
It's like a human with no senses - sight, hearing, touch, smell or taste, also paralyzed, short term amnesic and alone, but able to gobble tons of random internet text. After training it can meet people but can't learn from those experiences anymore, the network is frozen when it meets the real world.
