The document discusses several potential ways that human evolution may progress in the future, including:
1. Humans could split into two sub-species - an upper-class that is intelligent and attractive, and a lower dim-witted class.
2. Genetic engineering and enhancement of traits like intelligence and strength could allow humans to modify themselves to be smarter and more capable of surviving threats.
3. Humans may assimilate more machinery and technology into their bodies, becoming cyborgs that use implants and enhancements to extend capabilities. Some experts argue this may eventually result in humans merging with artificial intelligence.