roland comments on What information has surprised you most recently? - Less Wrong Discussion
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Even simple "obvious" insights often don't occur to us. But they become clear in hindsight or after being pointed out by others.
Humans don't have general intelligence. This became clear after watching a video of John Tooby, Evolutionary speaking humans have evolved subsystems for solving specific problems like navigating the social landscape. But we don't have general intelligence. This explains a lot.
Could you give a brief summary of why we don't have general intelligence?
First there is some contention in this and I'm basically reflecting Toobys opinion here. He says that there was no selection pressure to develop general intelligence and instead we have specialized subsystems that help us navigate our world.
IIRC the video was the following:John Tooby: Can discovering the design principles governing natural intelligence unleash breakthroughs in AI?
As evidence consider the Wason selection task, although a very simple logic puzzle most people fail at it, but can do it when the same problem is presented in a social context instead.