"The end of the world has been promised by Jews, Christians, Muslims and assorted crazies with sandwich boards in Oxford Street for as long as there has been a human world to end. But those doomsdays were the product of faith; reason always used to say the world would continue, that humans would survive......The point about the new apocalypse is that this situation has reversed. Now faith tells us we will be able to solve our problems; reason says we have no answers now and none are likely in the future. Indeed, reason says the more we know, the more we discover what we cannot know. Perhaps we can’t cure cancer because the problem is simply beyond our intellects. Perhaps we haven’t flown to the stars because our biology and God’s physics mean we never can. Perhaps we are close to the limit and the time of plenty is over. The evidence is mounting that our two sunny centuries of growth and wealth may end in a new Dark Ages in which ignorance will replace knowledge, war will replace peace, sickness will replace health and famine will replace obesity."