In fact, from Ale's point of view, this could be a blue hat.

事实上,从艾尔的角度看,这很有可能是顶蓝色的帽子

耶鲁公开课 - 博弈论课程节选

Eliza's technology also could be used in Blue Gene, IBM's supercomputer under development and aimed for biotechnology research.

FORBES: Magazine Article

If GDX tops this area and moves to all-time highs, traders could be capitalizing on a blue sky move.

FORBES: Time To Get Gold And Oil

Could blue eyes be another example of the same phenomenon "culture-gene co-evolution"?

WSJ: Matt Ridley on Human Culture's Effect on Genes | Mind & Matter