While I agree that other intelligent life forms exist, I do not agree that contact will be particularly dangerous. There is also plenty of evidence that contact is presently ongoing though not necessarily at the level of peer to peer contact as was the much maligned
I have posted extensively that the known reports on ET and a vast array of other conforming evidence suggests the existence of a large population of space adapted humanity who are both responsible for our presence here and do engage in active monitoring.
I do not need to introduce a biological class from another solar system but neither do I need to rule it out. Our close passage through the Sirius group every 100K years or so provides for that possibility without having to introduce FTL travel.
It is my suspicion that ET is merely waiting for us to build MEV’s ( Magnetic Exclusion Vessels ) presently seen and described as UFO’s and to come out and find them. The finding part will not be tricky at all. New readers may want to read my article on reverse engineering the UFO found both here and on Viewzone.com.
Recent breakthroughs in our understanding of the technology put us within the next twenty years without breaking a sweat.
Stephen Hawking has repeated his long-held belief that intelligent aliens are likely to exist, and that a visit by them to present-day humanity would probably have unfortunate consequences for us.
* To my mathematical brain, the numbers alone make thinking about aliens perfectly rational... If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in
, which didn’t turn out very well for the Native Americans.” America
I agree that life and probably intelligent life is pretty common. I disagree that it makes much difference whether we broadcast out via SETI or not. Before aliens or we can cross interstellar space we can go to the gravitational lens of the sun (500 AU about 2 light days away) and set up large telescopes or create hypertelescopes at other locations.
These observatories would be able to image planetary surfaces and take spectrographs of planets. (World Imaging telescopes)
With a hundred billion galaxies each with potentially a hundred billion stars, Hawking considers that intelligent life is entirely possible - even, perhaps, intelligent life with technology so advanced as to be able to travel across interstellar distances. He considers it an extremely unwise move for primitive present-day humanity to attract the attention of such voyagers - by such efforts as the controversial practice of beaming out "Active SETI" signals
Stephen Hawking's Universe begins on the Discovery Channel on Sunday 9 May at 9pm.