You get the feeling, reading Gatsby, that Fitzgerald realized what a remarkable age it was.
[ thanks in part no doubt to Zelda, a southern belle, tho she was surprisingly wild, being the daughter of an austere Alabama Supreme Court justice.
Remind me later to tell the story that ends with a teenage Zelda responding to her daddy's 2AM question by saying » "Isnt't this the time that all hussies come home?" ]
And that he therefore wanted to c.a.p.t.u.r.e the essence of his sparkling time .. of his magical age, of his too-good-to-be-true era .. about all this wonderful shit going on and on for ever and ever ad infinitum .. 'til kingdom come.
This Age of Permanent Prosperity. To capture the euphoric optimism as best possible. As artistically as possible. To bottle it in a book. In a novel. So future generations will to be able to sample for themselves a taste of the sparkling effervescence of the roaring twenties.