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There's probably a word I've been pronouncing wrong my whole life that I don't know about
(discuss.tchncs.de)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
I would say you're actually witnessing the very real phenomenon of language-drift. Languages evolve for a billion reasons, but there's no right or wrong state of language.
That's why we distinguish between language, dialect, idiolect, sociolect. Each bearer of language is also a producer of language. Their version is just theirs, in whatever many ways that makes that version unique.
(Check linguistics to better understand this process of language-drifting )