This is actually a very important principle that science is learning about large systems like evolution and that futurists are learning about anticipating human society: just because a future scenario is plausible doesn't mean we can get there from here.
Kevin KellyIt has become evident that the primary lesson of the study of evolution is that all evolution is coevolution: every organism is evolving in tandem with the organisms around it.
Kevin KellySpecies go extinct because there are historical contraints built into a given body or a given design.
Kevin Kelly