The song "1999" was a warning about the Y2K
"2000: 00, party over, oops, out of time"
Prince used enough electronic instruments that he had a special insight into this problem.
Think about it. Dude is 53, and still looks like he is in his early 20s. He is constantly wooing women with those eyes. He maybe possibly Bi-sexual. He is introspective. He makes great Rock and Roll songs. He is also highly religious. Plus his symbol is one of the symbols in Vampire: The Masquerade
Prince has Asperger's Syndrome
Rambling monotone? Check. Obsession and notable proficiency in one area? Check. Eccentric habits? Check. Egocentric? Check. Somewhat reclusive? (By pop star standards) Check.