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> I find myself reading the news backwards; rather than "the brain uses space-orientation to map other things", it's like "it's interesting how many things can be represented in a space-like manner that we may not have otherwise thought they could be".

It could actually be spatially related in the brain too. Neurons are situated spatially and spatial constraints, ie. they have a limited number of connections, and the closer two neurons are spatially, the faster they can signal each other. The neuronal connections also rewire each other based on reinforcement, which could very well consistent of moving related concepts closer in your physical brain (at least important ones).

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