This is an interesting theory.
Conventional thinking is very wrong, on the one hand you have the creationists and on the other the evolutionists but neither of them is right.

The real archaeological evidence shows that modern humans have been around for at least 300 million years. It's not hard to imagine a breakaway species forming from us in such a long span of time. The idea that we evolved from something else 20 thousand years ago is a lie the establishment tells us to believe. Just because a theory like creation or evolution is popular doesn't mean its right. contemporary mainstream beliefs like the established scientific theory of evolution are forced on us. It puts our minds in a box. Religions put our minds in a box. They don't want you to think outside that box.