Commenter pumpkinhead describes the above photo:
That is Jarron Collins, NBA player almost 7 foot(close to Shaq’s height albeit in a more slender frame probably smaller head). Note that Oprah’s and Jarron’s heads are on roughly the same plane equidistant from the camera, which makes this a good photo for comparison. Compare head width, he has over an inch on her and I would be willing to wager that his brain is at least a couple of SD bigger than hers and I doubt he even gets close to the 2000 cc mark. Now Imagine his head on Oprah’s body, would that not be freakishly big? That is how big her head would have to look on her body for her to have a brain close to being as big as you suggest. Trust me 1740 cc is generous and after all, astonishingly big(bigger than 99.9% of white men).
Jarron’s head only looks wider because he’s standing on an angle, allowing us to see both the side and front of his head. Oprah is looking at the camera straight on.
But as a seven footer, Jarron is probably more extreme in head height than head breadth and yet when I put my ruler against the computer screen to measure the distance from their eye brow to their hair line, they both clock in at just under 1.5 cm.
So not only does Oprah have a cranium height that is comparable to a seven foot black man, but her cranium length may exceeds an average black man’s by 30% and that percentage multiplies when you consider that cranial capacity is a cubic variable.
Having said that, I’m sure there are some black men out there with bigger brains than Oprah, but back in the 1970s, when Oprah reached peak brain age and the well nourished population of the World was much smaller, there were far fewer and whatever few existed likely had much more muscle mass and height than she had at the time. In the early 1970s Oprah only weighed about 135 lbs, suggesting a fat-free body weight of only 95 lbs!
Arthur Jensen notes on page 439 of The g Factor:
Also, we must take into account the fact that, on average, about 30 percent of total adult female body weight is fat, as compared to 15 percent for males. Because body fat is much less innervated than muscle tissue, brain size is more highly correlated with fat-free body weight than total body weight. Statistically controlling for fat-free body weight (instead of total body weight) has been found to reduce the sex differences in head circumference by about 77 percent, or about three times as much as controlling for total body weight.
Adjusted for her 95 lb fat-free body size, Oprah was perhaps the biggest brained black on Earth (male or female) at least briefly during the 1970s. Several decades later she would become the World’s ONLY black billionaire (male or female) for several years.