President Obama is arguably the most powerful person on the planet, and he’s black, except he’s not black by HBD standards.  Scholar J.P. Rushton wrote:

Yes, to a certain extent all the races blend into each other. That is true in any biological classification system. However, most people can be clearly identified with one race or another. In both everyday life and evolutionary biology, a “Black” is anyone most of whose ancestors were born in sub-Saharan Africa.  A “White” is anyone most of whose ancestors were born in Europe. And an “Oriental” is anyone most of whose ancestors were born in East Asia. Modern DNA studies give pretty much the same results.

I would probably include people whose ancestors were born in Australia, Papua New Guinea and the Andaman Islands is my definition of black since they have genetically preserved the phenotype of sub-Saharan Africa despite having evolved separately for tens of thousands of years.

But the key point is that most of Obama’s ancestors were probably not born in Sub-Saharan Africa, only about half of them were.

HBDer Michael Levin is even more precise:

Hybrid populations with multiple lines of descent are to be characterized in just those terms: as of multiple descent. Thus, American Negroids are individuals most of whose ancestors from 15 to 5000 generations ago were sub- Saharan African. Specifying ‘most’ more precisely in a way that captures ordinary usage may not be possible. ‘> 50%’ seems too low a threshold; my sense is that ordinary attributions of race begin to stabilize at 75%. An individual, half of whose ancestors are East Asian and half Caucasian, is to be categorized as just that, of half northeast Asian and half Caucasian ancestry. Nothing in continental cladistics precludes mixed ancestry, any more than the concept of a breed of dog excludes mixtures.

So if Obama is not black by HBD standards, has any black been the most powerful person in the World at any time in history?  The key word is history.  In prehistoric times, when all humans were phenotypically Negroid, the most powerful person must have been black, because all humans were black, but that doesn’t count.

Has any self-made woman ever been the most powerful person in the World at any time in history?  Queen Isabella I was arguably the most powerful person on Earth in the 15th century and Queen Elizabeth I was probably the most powerful person on Earth in the 16th century, but neither of these women were self-made.  They inherited their thrones from male family members.

If Hillary Clinton becomes the next President of the United States, she will join the exclusive club of women who reigned as most powerful person on the planet, but like Isabella I and Elizabeth I before her, Hillary inherited her power from a male family member.  In her case Bill Clinton.  So even if Hillary gets elected, the human species will maintain its perfect record of never having had a self-made woman be the most powerful person on Earth.

According to scholars like J.P. Rushton and Richard Lynn, blacks and women have smaller brains and lower IQs than non-blacks and men.  These differences  may help explain why no black has ever been the most powerful person on the planet, however the IQ differences between men and women are too small to explain why no self-made woman has ever been the most powerful person on the planet.  Thus men likely used their physical superiority to keep women in their place and no woman has ever been smart and ambitious enough to overcome this barrier without being attached to the patriarchy as wife, daughter, or sister of a ruling man.

The only self-made woman and the only black who has come close to being the most powerful person on Earth has been Oprah, who for years reigned as the billionaire Queen of all Media and kingmaker to Obama’s presidency, but she was born with a freakishly large brain size  which helped make her especially smart.  I estimate her IQ to be an incredibly high 140 (smarter than 99.5% of white America and very similar to Obama’s IQ and Hillary’s IQ), which allowed her to become the most successful member of her race and her gender.  Had her IQ been even higher still (150 instead of 140), she might have made the leap from Presidential king maker to President.  By contrast 140 is enough for Obama to have become President because he had the advantage of being half-white and male, and 140 is enough for Hillary to become President because she had the advantage of being white and inheriting power from her brilliant and charismatic husband Bill (who is probably also around 140).  Though some would argue that being white is no longer the advantage it once was.

The laws of probability suggest that if the human species survives long enough, eventually a black or a self-made woman will emerge as the most powerful human on Earth, but if it requires genetic engineering for this to happen, it doesn’t count.