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by melodynelson
Wed Sep 28, 2011 5:40 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0957: "Development"
Replies: 87
Views: 21564

Re: 0957: "Development"

Piaget's stages of cognitive development has only four stages...that's the joke here. Well, that and the imaginary fifth stage is trying to emulate how a psychiatrist might describe a storm's destructive tendencies.

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