Clyde Drexler fell off at around this same time. So did Vince Carter, Dwyane Wade, Shawn Kemp. Julius Erving maybe one year older.
Iggy when he was even younger than that. Hell, Blake Griffin is falling off right now.
You can really tell which players had games that actually are predicated on athleticism.
I don't think it's just athleticism. Around this age you done made all this money, your kids are growing, you just don't feel like giving it 100%..