>>514114228 (OP)
Translation: Africa has a high mutation rate, being an equatorial place. Being the largest continent with that nature, and by virtue of the fact that humanity originated there, their genetic pool is in a high state of flux and it's hard to identify actual changes in survival strategy until a fully functional formula has worked out all of the contingencies into a genetic formula that can reliably be passed on to offspring. At that point, it can find it's way out of Africa without dissipating and being pushed back by survival strategies that are good fits in other climates.
Africa is the best place to push human evolution. We remain a single species because of that formula. In theory, you can imagine a Star Trek world if you can get past the regional bigotry but even the Africans don't seem to select against bigotry.
In all honesty, screw that Star Trek fantasy. It's just female politicians and they've proven the actual results of it. Times change and what the species needs also changes.
We live in a dream that is closer to Babylon 5 culture. We're "not ready" for immortality. It's about being ready when you are willing to consume your surplus population because you have decided that you don't want to change anymore and don't really have to.
This isn't that fancy a concept but you keep getting your message mangled because you can't seem to keep it all contained in your own identity.