Why are you so close minded to the vast possibilities? Sounds very ignorant to me.
But in all seriousness, eye color seems like a trade off physiologically. Blue eyes are more sensitive to stimuli, so theoretically, people with blue eyes may have better vision and perception of the world, and therefore absorb more information about it, and possibly understand it better in some capacity.
The downside is that sensitive eyes are also more prone to damage and visual diminishment over time if constantly exposed to short wavelengths of light.
If you have blue eyes and spend an exorbitant
amount of time staring at computer screens or working it bright sunlight, you may want to invest in some glasses or a hat to mitigate some of your intake of that light.