... It is not feasible that we could be the only life forms.
me and my dad were talking about this subject not to long ago and he told me "well just the other day i was watching a television program and some scientist came on the screen and spit out a whole bunch of equations at me and came up with some stink of a number and that number was how many possible planets out there could be survivable like the one we live on"
my dad is old and funny sometimes....but if this were true could it mean parrelle universes? nodoby knows but anythin can be possible when it comes to space and other galaxys