posted on Jun, 18 2009 @ 02:41 PM
You can use the oppo argument . . . there's really only one compelling argument against alien visitation and that is the necessity of physically
transcending time and space to get here, a truly mind boggling accomplishment.
Still, many theoretical physicists seem to think it's doable. Scientists were right in their theorizing about black holes long before they were
proven through astronomical observation.
[edit on 18-6-2009 by fls13]