Show me the money? That's what I want to see. Never in history has there been a discovery that shows life elsewhere in the universe. Show me non-DNA life, or a piece of the space ship made from an unknown material. Until you have something like that the evidence for UFOs is the same as for unicorns.
While I agree with the main idea you present here, I would just like to point out that UFO means Unidentified Flying Object; not alien space craft, though many jump from the former to the latter for no good reason. As such, there are indeed UFOs - that is, events associated with unidentified objects that remain unexplained to this day - very few such cases exist, but they do exist.
Around 100 billion stars/suns just in our galaxy!! Between 100 and 500 billion galaxy's in the universe closer to 500 billion!! Please open you're mind that we are not alone the proof is in the math if you had a brain cell or two you could figure that out.
Possible earth like habitable planets in the universe 50,000,000,000,000,000,000,000 so i guess the chances are we are all alone
Yeah, but please do calculate how long it would take us to reach them !?
Even if we could travel at speed of light , we probably would die before arriving to another civilisation,
the only chance we can have is to build ships that would have eco-system and where few generations would pass, enabling us to explore much further.
That's the thing. Even if there were thousands or millions of civilizations it may take billions of years to reach the closest one. If our civ is any indication of normality then we may have to time it just right. Finding a point where they have technology but before they have destroyed themselves.
While I find the argument about odds has merit, we really can't say anything about other life in the universe since we have only one example.
You're right: it is problematic to draw conclusions based on so little information, as is the case for life in the universe - but, in a sense, aren't you doing just that? I mean, you believe the argument he presents has merit, but sort of dismissed it based on an anthropocentric view: not only do we not know what the future holds for humanity, and whether or not it will destroy itself, but also, we don't know if there is good reason for such danger to be common to all advanced species - personally, I think culture has a lot more influence than most attribute to it. Also, just because humans have so far been unable to devise workable ways to move at speeds faster than light, that doesn't mean it's impossible. And finally, there could be life forms whose biology allows them to survive in conditions different to what we have on Earth, effectively increasing the number of worlds that might hold life.