There's some other theories why everything changed in the early 70s. https://wtfhappenedin1971.com/ https://wtfhappenedin1971.com/ has a nice compilation of the

There's some other theories why everything changed in the early 70s. https://wtfhappenedin1971.com/ https://wtfhappenedin1971.com/ has a nice compilation of them and their downstream effects.