Everything beyond the Dewey decimal system is/was pretty unnecessary, imo. We created a way to organize and “quickly” locate information stored in a physical format.

The near complete lack of manual labor has had many long reaching effects on society.

I type this on my brand new flagship phone…

You are assuming everyone lives within a mile of a bus stop and has a safe road with sidewalks or bike lanes to get to that bus stop.

Worked great when I moved from Google to Spotify due to YTM. A few songs didn’t transfer correctly, a few saved as covers of the original but as they shuffled I’d just manually search them and correct it.