..the more I think about it, the more I become convinced that optimism isn’t just hard work, it’s scary: it invites disillusionment, it openly courts the up-ending and down-throwing of one’s conceptions of the world. To maintain optimism, one must keep picking oneself up after the arrival of a disappointment, rebuild a new theory of the world, adjust and amend it as new data comes to light. By comparison, pessimism is easy: sit back, shake your head stoically as you predict bad things to come, and then just open a newspaper or web-browser and pick out the evidence to prove you were right. People are a lot like electricity, in that we tend to follow the path of least resistance. Pessimism has a nice fat copper cable strapped straight to the psychological earth-point; the gratification of being proved right, gained with minimum emotional expenditure.