i was jsut thinking and imagine this. its a history lesson in the begging so bare with me. in the past, dinosaurs died beucsae of heat and fire (theorized). the reason we are here is because of small animals of that time which where ancestors of an animal that burrows into the ground but is a mammal. (forgot the name of it). it surrved the becuase it burrowed low to hide form the heat and it lived off of the roots of trees. now here is were my theorys come into play. imagine life in 6 million years. imagine us how we look at dinosaurs and how they died. what if we die from pollution and everything is hell for us. but imagine a plant/animal/cell that would be made so live in those harsh conditions, while humans die off they flourish and form the new life so it can live in this enviroment. just imagine if its all jsut one big cycle we go through. someone is made, has a "golden age" and life flouishes, it begins to do bad, it gets so bad that something kills us off and there seems to be no hope for life on earth but then a genetically different object is made and it reproduces over and over again and the process repeats. kinda a deep speech so i dont expect all to understand what i mean.