be a biologist
research clovers
everyone says "clovers have 3 leaves"
its a law of nature
go outside
find 4-leaf clover
i better take it to court for violating laws of nature
This is obviously stupid. Discovering something that violates a descriptive 'law' means the law was wrong. And yet, people do this in conversation all the time.
Sometimes casual conversation begins with a "But". E.g., someone might say "But anyway, have you seen that new movie Oppenheimer?"
Grammar nazis react to this by saying "You can't say 'but' at the start of a sentence if that sentence isn't a rebuttal of the previous sentence! It's a law of english!"
'Laws' of english are meant to be descriptive, not prescriptive. But alas, we live in a society 😔
Basically, the meaning of it is "live your life proudly, and don't let other people dictate whether your rules are right or wrong, because your rule just is".
Note: I had posted this before from another account from another instance (feddit.de), but the federation seemed to be broken and the post didn't show, I think. Sorry if it appears double in your feed.