Friends were anxious to learn if I had had a near-death experience, and if so, what effect it had had on my longstanding public atheism. Had I had an… - Daniel Dennett

I find it breathtaking […] that when musical composition competitions are held, the contestants often do not submit tapes or records (or live performances) of their works they submit written scored, and the judges confidently make their aesthetic judgements on the basis of just reading the scores and hearing the music in their minds. How good are the best musical imaginations? Can a trained musician, swiftly reading a score tell just how that voicing of dissonant oboes and flutes over the massed strings will sound?

Remember Marxism? It used to be a sour sort of fun to tease Marxists about the contradictions in some of their pet ideas. The revolution of the proletariat was inevitable, good Marxists believed, but if so, why were they so eager to enlist us in their cause? If it was going to happen anyway, it was going to happen with or without our help. But of course the inevitability that Marxists believe in is one that depends on the growth of the movement and all its political action. There were Marxists working very hard to bring about the revolution, and it was comforting to them to believe that their success was guaranteed in the long run. And some of them, the only ones that were really dangerous, believed so firmly in the rightness of their cause that they believed it was permissible to lie and deceive in order to further it. They even taught this to their children, from infancy. These are the "red-diaper babies," children of hardline members of the Communist Party of America, and some of them can still be found infecting the atmosphere of political action in left-wing circles, to the extreme frustration and annoyance of honest socialists and others on the left. Today we have a similar phenomenon brewing on the religious right: the inevitability of the End Days, or the Rapture, the coming Armageddon that will separate the blessed from the damned in the final day of Judgment. Cults and prophets proclaiming the imminent end of the world have been with us for several millennia, and it has been another sour sort of fun to ridicule them the morning after, when they discover that their calculations were a little off. But, just as with the Marxists, there are some among them who are working hard to "hasten the inevitable," not merely anticipating the End Days with joy in their hearts, but taking political action to bring about the conditions they think are the prerequisites for that occasion. And these people are not funny at all. They are dangerous, for the same reason that red-diaper babies are dangerous: they put their allegiance to their creed ahead of their commitment to democracy, to peace, to (earthly) justice — and to truth. If push comes to shove, some of the are prepared to lie and even to kill...

Philosophers' Syndrome: mistaking a failure of the imagination for an insight into necessity.