Also=20keep=20in=20mind,=20something=20worth=20rep eating.=20Intell=
igent=20space=20faring=20species=20likely=20abound =20throughout=20=
the=20universe.=20If=20interstellar=20travel=20wer e=20possible,=20=
then=20we'd=20be=20often=20visited=20by=20aliens.= 20We=20are=20cle=
arly=20not=20so=20it=20isn't=20possible.