#5 by mindhack » Jul 26, 2011 12:58 pm
I'm not too impressed with the content of the OP's quote of Michael Shermer. But I don't know him or have ever read something he wrote. That said,
From what I know belief is understood as the result of a subconscious irrational need for stress reduction - however small this need might be. The brain has a subconcious wishful "thinking" bias built-in to avoid stress (from fear)
example:
I ask you where your car is. You say "it's in the garage". I say "how do you know? ". You say: that's where I parked it. I say: "so you don't know, you just believe it's in the garage". You might say: "well, I have no reason to think otherwise"
While that last answer seems a reasonable justification, it is the product of the wishful thinking bias of the brain. To avoid stress the brain happily and uncritically makes that assumption, otherwise it will urge you to take a look in the garage. In fact, the brain often seems to prefer lying and cheating to itself, over checking something out. The brain seems to prefer to be lazy over being tired. Unless the situation indicates eminent danger (rationally: "physical damage" or, irrationally "damage to highly regarded ideas"). But this distinction I don't see Shermer make. Note that irrational percieved danger (to ideas) tend to result in ego defense mechanisms as Shermer implies with his positive feedback mechansisms
In short, the brain can believe anything as long as there's a need for stress reduction - and the justifications (either rational or not) follow from that. So far so good. However, describing this "stress reduction mechanism of the brain" as a "mechanism to create meaningful patterns" isn't exactly accurate. And claiming that once beliefs are established they always become positive feedback loops is missing an important distinction. Beliefs that are persistent develop, yes. But persistent beliefs develop because they're consciously and unconsciously tested. They're always "being tested", and only sometimes this testing qualifies as a "positive feedback mechanism" (the latter is often noticable in the case of defending religious belief)
(Ignorance --> Mystery) < (Knowledge --> Awe)