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You know how you can push some buttons on your wall and your house magically warms up or cools down? I know people who were alive before that existed.
Oh, and salmon sushi was invented in the 1980's by the Norwegian fishing industry. Before that, no salmon in sushi.
bestest sushi
Who started putting avocado in sushi? I hate that shit. It seems like everyone thinks it's key ingredient in sushi rolls now.
You know multiple people who are 123 years old???
I was thinking of central heat and air conditioning accessible to the masses for home use. But you are right that the history of HVAC goes back much farther than that.
Maybe either didn't have it necessary it wasn't widely used, or knew somebody (who was alive 20-30 years ago). Or both.
I still can't do that