“extant scientific knowledge corresponds to uncertainties that span multiple orders of magnitude … When the model is recast to represent realistic distributions of uncertainty, we find a substantial probability of there being no other intelligent life in our observable universe, and thus that there should be little surprise when we fail to detect any signs of it.”
This is ridiculous, we have exactly one example of life, us. So how the heck can models be recast and find ‘substantial probability’ of anything?
There are many theoretical solutions to the paradox as far as I can see. They are all just as valid as a theory saying that we are alone simply because we can’t detect anything and haven’t been visited by anyone else so far.
Freegards
I believe that’s his point. It’s pretty fanciful to be so sure about life elsewhere, which this thread admirably demonstrates, when you only have one datum.