Today i learned about the DRD4-R7 gen; titled "Discoverer gen", because it's likely the main factor for out-of-afrika

• the further away the population, the more have it, while mammalia other than human only change habitat if forced
• globally 20% have it
• "booster" for dopamine
• dopamine mainly responsible for emotion intensity; by extension, how interesting something is or how quickly they're satiated by stimulation (sex included)

Conclusion: for 80% of humanity is the drive to discover/learn new things weaker than their lazyness.

This explains so much.