thinking about future shock today, and more generally, calcification and stagnation of self

why it happens, who it happens to, whether its inevitable

collecting some related thoughts in the replies
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RT @pee_zombie
@orthonormalist I made a quick diagram to explain this
https://twitter.com/pee_zombie/status/1387250372012650496

for many people, their music taste gets permanently frozen at what was cool when they were in high school; this explains much of the "oldies" and nostalgia phenomena

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RT @pee_zombie
a friend today mentioned a band I liked and was confused when I said I didn't, protesting that I raved about an album... 8 years ago

this friend has been listening to the exact same music since then, meanwhile there is little overlap between the music I…
https://twitter.com/pee_zombie/status/1322390185963827200

calcification as an energy-efficiency adaptation; why maintain expensive optionality if you're unlikely to need it?

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RT @pee_zombie
many people do the same; they search for their economic niche, a mate, a place to settle down, and then once this is achieved, their brains sort of calcify, as there is no longer any real need for conscious contemplation. from an evolutionary standpoint, it would be inefficient.
https://twitter.com/pee_zombie/status/1379652742264856576