This reminds me of that Star Trek episode where the local aliens were bilaterally symmetrical humanoids, with one side solid white and the other side solid blac

This reminds me of that Star Trek episode where the local aliens were bilaterally symmetrical humanoids, with one side solid white and the other side solid black. There was conflict between those who were white on the right side and white on the left side and each persecuted and tried to enslave the other as 'inferior - isn't it obvious?' Yet in this PC eruption with Watson we have to examine the merits of what he says. We know genes encode skin, hair, eyes and thousands of other attributes that - over time - have evolved to suit local conditions. That is why melanized skin clusters close to the equator and we lighten as we go away from the equator. There are other things close to the equator, like a permanent growing season - food crops, animals, and predators are more common and population density is higher. With higher density of population competition for food gets more intense. Tribes form to protect food/crops/prey etc., these tribes have different organizational structures, much like an army, tribes have structured leaderships - chains of command, so tribal society may well evolve to favor loyalty to the strong leaders and disfavor community decision making? Can you envision an army where the privates discussed their orders, and fed their comments up the line to cancel an attack - we do not want to take this risk... Examining this granularly, we may well find a tribal society values combat skills as more valuable than intellectual skills. Throwing a spear, chasing an enemy, and combating an enemy and similar skills are crucial to tribal survival. Intellectual skills are down graded and - to a degree - fade away as evolution does it's work. What this means is a intelligence has many factors and some are 'body smarts' and some are 'head smarts', in the sense that a faster runner or a more accurate and far ranging spear thrower is smarter than me, yet I can parse Latin sentence structures, sadly an inferior combat skill. This may well mean that we need to examine and modify our thoughts on this topic to fully understand and fit reality to theory and not just hit the PC button.