It is as if Nature has declared a harsh X prize; survive if you do, die if you do not.

Despite their enormous size and domination, the dinosaurs were booted out. Humans with their great brains may meet a similar fate. Perhaps, our successor will be a virus or a microorganism. It is their turn anyway.

Following the principles of meritocracy, the abdicated throne of the Cosmos awaits the deserving to pull the sword from the stone. Effectively, Nature created her adversary, a rogue who threatens the balance on Earth. Maybe the creation of a detrimental race was purposeful, but Nature has been known to experiment continuously and launch failing products from her labs.

The phenomenon of iterative evolution or the repeated evolution of a species from the same ancestor at different times may be the plan on a larger scale [for mankind], especially after a global purge.