the Sumerian King List says some of these guys ruled for 28,800 years. nobody talks about WHY

okay so I've been staring at the Weld-Blundell prism for like three hours now (photos, not in person, I wish) and everyone always clocks the absurd reign lengths pre-Flood — Alulim at Eridu, 28,800 years, En-men-lu-ana, 43,200 years — and then just... moves on. "oh it's symbolic" or "Sumerian number……