Many small worlds surrounding the major one, like satellites with just a few mountains and some lakes, span no more than a hundred miles in diameter, making it highly unlikely for any overly complex chains of biological evolution to exist.
Yet therein often reside indigenous people, which is utterly baffling.
The first explanation is that the history of mankind is much deeper than imagined. The mulberry leaves grow silently, and over the millennia, humankind's footsteps have spread across each small world.
But this explanation also has a significant doubt: Why do humans exist in completely separate major worlds?
It's somewhat reasonable for every continent on Earth to have human inhabitants.
Yet finding humans on Venus and Mars is quite abnormal. Given the vast distances between major worlds, and without sufficient team strength, could anyone really cross these distances?
