Comment by passion__desire

Annecdata : Our primate brains has random number generators to keep our head moving and scanning the environment for threats (there a possible veritasium video on this topic). But my friend in university had a possible (gene?) modification which allowed him to focus on a particular task intently. He could ignore distractions very easily and unsurprisingly he could grok biology and physics textbooks like crazy. The fact a spider with salt sized brain can weave a web without seen examples is a proof that genes do have effects on brains and capabilities.