In physics and engineering, objective models usually make problems easier to solve, while in economics and politics objectivity might make things harder. Some pressing economic and political issues could be solved easily and cheaply if we abandoned dogmatic universal models; just as TV designers don’t wrestle with the problem of producing the entire spectrum of visible light, policy-makers, designers and businessmen would be wise to spend less time trying to improve objective reality and more time studying human perception and moral instinct.
