"Like a 'random' extinction level event creates a clean slate. Life is back to a simple state(amino acids/proteins). (<a href=""https://www.youtube.com/watch?v=ZecQ64l-gKM&amp;t=2h33m25s"">2:33:25</a>)  Weather creates simple environmental systems or 'rules' driving diversity to a complex system of bacteria/plants. To maintain its balance", more complex systems like bugs/herbivores eating plants balances out. To many animals? Time for carnivores. Humans appear next. The path of evolution is natures complex balancing act in different environments or biomes. We are not part of this system of balance and renewal. Are we the next extinction level event? Are we aliens , or has evolution failed to balance for the first time? Sorry about my crazy posts but this is crazy interesting!