bq.The life of the mind in the age of Web 2.0 suffers, in many ways, from an increase in credulity and an associated flight from expertise. Bloggers are called “citizen journalists”; alternatives to Western medicine are increasingly popular, though we can thank our stars there is no discernable “citizen surgeon” movement; millions of Americans are believers in Biblical inerrancy-the belief that every word in the Bible is both true and the literal word of God, something that, among other things, pits faith against carbon dating; and, scientific truths on such matters as medical research, accepted by all mainstream scientists, are rejected by substantial numbers of citizens and many in politics.