Why have we stopped seeing UFOs in the skies?

"The way this stuff has permeated culture as a whole has bred a widespread incurious scepticism. We now extend the same degree of undifferentiating refusal even to those phenomena that, while hard to credit, deserve to be heeded. Climate change might be the most obvious current instance but, at its most noxious, scepticism results in an unwillingness to believe in others’ suffering. The attitude of wholesale rejection, by which one might stand a chance of becoming impervious to fraud, is thus bought at the ever greater risk of nihilism."