"...blue again, which is the correlation spike we saw before the last unwind," a risk manager said Monday as fourteen models returned the same favorite color.

Large language models keep choosing blue when asked for a favorite color, a pattern a Forbes analysis has already mapped. Hedge funds now treat that shared answer as crowding, meaning too many books sit in the same trade and will all sell at once.

They line it up next to housing in 2008 and every blue-chip run that looked safest the week before it broke. The color, they say, is the tell: still water on top, and depth that swallows balance sheets.

A color prompt is now a stress test. Blue means cut risk. Anything else means cut faster, because a break in the pattern is how a blow-up starts too.

The bull case is that blue has always been the color of the water after the ship has gone down.