Gotta love Stephen Hawking…..despite the monotonous drone, one just can not miss the punchline!
Here’s a bit from a TED talk.
“On the other hand, we don’t seem to have been visited by aliens. I am discounting the reports of UFOs.
Why would they appear only to cranks and weirdoes?
If there is a government conspiracy to suppress the reports and keep for itself the scientific knowledge the aliens bring, it seems to have been a singularly ineffective policy so far.
Furthermore, despite an extensive search by the SETI project, we haven’t heard any alien television quiz shows. This probably indicates that there are no alien civilizations at our stage of development within a radius of a few hundred light years.
Issuing an insurance policy against abduction by aliens seems a pretty safe bet.”