An interesting word came my way recently (I “collect” interesting words) and, while I understood the concept outside of the actual word, I didn’t know what it was called.
That word is “aphantasia”, a condition in which a person cannot visualize mental images, and it impacts up to an estimated 5% of the population. When you say “tree” they cannot conjure up a mental image of a tree when they close their eyes.
There is actually a spectrum of how well people can mentally visualize things:
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