After a human has erected himself, many homo generations lived in a cave.
Homo sapiens used simple and more complicated tools.
With in a using tools he learned to change the environment and overpower other beings which led to mining of the table setting and almost collapse of the whole game.
Until the game changed.
Homo sapiens sapiens has found a tool to change himself and biohack human code. The relicts of the first homo sapiens sapiens which adapted himselves was found in a postmodern cave of the 90's of the 20th century.
Although this method of genome editing seems rather primitive today, only because of this experiment, sapiens could trace in to new space.
chapter one - exit the cave