@EvilSandmich @Humpleupagus @HarryNuggets
Most of the variation in physical attributes is caused by behaviors and environment with rare exceptions when people have certain genetic disorders
I am proposing the same for intelligence and physical attributes
No matter how much genetic potential someone has most will not be able to do a 5 minute per mile marathon without training
The primary cause of high intelligence is the choice to study not DNA
Rare exceptions are caused by genetic defects