The Fractal Catalytic Model argues that the 'evolution of life is the evolution of catalysis. This raises questions concerning the long term evolution of the universe and the rate at which the universe will approach its' eventual 'heat death'. Can life really affect the longevity of the universe?
Also, if sentient life is common and the rate of technological advancement is ever increasing - could this fact influence the course and evolution of the universe?
If the emergence of sentient life and advanced technologies is a process that has been going on for millions of years could its influence be measured now?