Odds of intelligent life occuring?

[Gawdzilla Sama]

And natural wins by a mile.

That's where we disagree; if the explanation was so manifestly natural, what is it?  By the way, ET is a natural explanation, as are we!  If the signal would be replicated, then no one would doubt the fact that it is due to extraterrestrial intelligence.  But, I agree that extraordinary claims require extraordinary evidence, and as ET is an extraordinary claim, then the signal would need to be at least replicated.  However, given that it was such a strong, narrowband signal implies either an artificial origin, even if such is terrestrial, or a strange, non-artificial origin, which would also be strange, as there are no astronomical phenomenon yet known that produce such a signal and the area of the sky that the signal originated from is completely empty.  And, the fact that it was centered directly on the hydrogen line, which is the most abundant element in the universe, also seems odd.

Cell phones would seem odd to Catherine the Great.

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I'd say the odds of intelligent life occurring elsewhere in the universe is somewhere between 1:1 and 1:1.

I'd be pleased if there were intelligent life out there. I would be surprised if it were anywhere near us. Two trillion galaxies, hundreds of millions of stars on average in each.