In jazz the aesthetic emphasis is on the empty space in between the notes. In the 30s you had a bunch of folks mixing weed with heroin in a way that seemingly u

In jazz the aesthetic emphasis is on the empty space in between the notes. In the 30s you had a bunch of folks mixing weed with heroin in a way that seemingly unlocked the ability to create art out of these interstitial moments. As a social term cool just means the same thing, referring to things whose positive qualities come from what they lack.