Talk:An Under-Edd's-Hat Theory/@comment-6000688-20130116140650

Here's my opinion with the most rational sense, and it shall end all doubt:

Due to him being the most intelligent person in the Cul-De-Sac, Double D may have a larger-than-average head to fit his brain,with his frontal lobe featuring visible, pulsating blood vessels in a fashion reminiscing the heads of the Gray aliens. Because of this bizarre feature, he hides it with his trademark hat.