Original sentence: (See Enough time elapsed since the big bang for evolution to occur.According to this hypothesis, intelligent life is rare because evolution has only now reached the stage where intelligent life has a reasonable probability of occurring
Edited sentence: According to this hypothesis, the processes resulting in intelligent life may be fundamentally probable but the age of the universe has simply not permitted the time necessary for evolution to render it more commonplace.Therefore, by sheer luck (or misfortune in a different sense), we are one of the first technological beings to have arisen thus far in the universe and others will most certainly arise in time