It seems we are eventually to divide into two genetic groups of humans.
According to Dr. Oliver Curry, we will form two races: one of tall, slender giants and another of squat, ugly goblins. I don't think we get to choose.
That's nothing to worry about just yet, it's 100,000 years in the future, after we've been wiped out by the global warming many people think isn't already happening, or the nuclear war we are constantly assured will never start.
It puts me in mind of H.G. Wells' old story, 'The Time Machine'. The hero travels into the far distant future, where humanity has split into two distinct subspecies, the Eloi and the Morlock.
The Eloi are tall, slender, gentle and innocent. The Morlock are hideous goblins who live underground - and eat the Eloi. So turning out as one of the good-looking species isn't necessarily a great move.
Science has inspired science fiction many times, but here the fiction predates the science by many decades.
I wonder if Dr. Curry ever read that book?