This was the first projection into paper of the Edge.org cast of bright minds, gathered together to answer their way on the question that gives the title to the collection of short essays. It's pure brilliance and provocation wisely mingled with sound reasoning and questionable feelings. An very much needed and recommended conjuration of deep ideas and far-seeing perspectives which, while possibly wrong in the long term, presently duly pursue the intended job. Which is to stir the reader's imagination and dust of many preconceptions (though by means of some other ones, possibly) so to prepare the ground to what is possibly next.
Hunches and feelings are, though many voices to the contrary, an inevitable part of the activity which founds science and in general every creative cumulative process. Belief in the positive sense, which is to be found ultimately in most of our even most trivial activities and whose exclusive affiliation to the irrational superstitious (religious) thought should be ultimately cleared out in order to express its motivating and dynamic power to the full.
Many areas are touched hereby, from reflections on the concept of belief itself to quantum physics to limits of science to communication tools to social complexity and so on. Evoking criticism and enthusiasm at the same time is the least of the benefits to be expected from this little jewel of a cheap book.