At Marginal Revolution today, economist Tyler Cowen was asked about whether there are some especially good economic ideas out there that are hard to popularize, and his answer led to a brief digression on complexity and agnosticism:
[I]t is hard to popularize “maybe” claims, agnoticism, uncertainties, confidence intervals, and contingencies. The marketing process encourages excess certainty.
Confidence and oversimplification sells.
It ain’t easy being agnostic.