Originally posted by Bicnarok
Past and recent scientific thought is guesswork, no one has ever seen an alien (apart from jacko fans) so any equation, mathematics of evolution (which is after all just a theory anyway) is pointless without the data to input. If you consider the diversity of life on this planet its more probable that alien life could also be diverse, even non carbon based.I hope we find out sometime, preferably in my life time.
Point remains you have no rational basis to criticise a series for having humanoid aliens. It's scientifically viable.