Push The Button wrote:
Real alien life will have almost nothing in common with us, though perhaps some elements of our design may be optimal or practical enough to have evolved in parallel someplace else. Genetically, humans would have more in common with yeast or the common cold virus.
Given that nature isn't opposed to similarities and duplications--as well as how vast our Universe is and the likelihood that Earth isn't the only
planet of its kind within it, IMO--the odds that there are some
alien life-forms that may be virtually indistinguishable from us are actually good, even if they are millions of light-years away in another Galaxy somewhere.