7 yo was surprised to learn that the 5 second rule has no basis in biology. But when I imitated a bunch of germs seeing food fall and counting to 5 before jumping on it, he had to admit it was pretty implausible.
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It's always been a rule of psychology, not a rule of biology. It does have a basis in psychology.
I could see "has a basis in psychology" becoming a byword along the lines of "wardrobe malfunction" and "wide stance."
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I don't think people who eat things briefly on the floor but not things on the floor for longer are under the misapprehension in the first place that there's some health reason for that. It's just a preference, like eating things that taste good but not things that taste bad.
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If you want to understand WHY that is a common preference, there are tools of psychology that can be helpful. Just like if you want to understand why some people are friends and others aren't, psychology is the field that helps to understand that.
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I think a lot of cleanliness norms are actually about purity, which is a cultural concept. You really start to recognize this when you live in different cultures with different norms. "Don't eat that, it's dirty" applies to entire categories of food.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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E.g. creationism has a basis in psychology.
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Choosing not to eat things off the floor is a matter of preference, not a matter of science or logic or belief. I don't see how it's anything like "creationism". It's more like going to church.
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