"Thus, any possible anti-discrimination law will strongly discourage employers from hiring people without the requisite credentials, regardless of whether they are capable of doing the job. In the case of the actual anti-discrimination law that we are saddled with, subsequent judgements have even eliminated IQ tests as admissible documentary evidence, except insofar as applicants take, at their own expense, a substitute IQ test (never, of course, called by that name) costing many thousands of dollars and requiring four years to complete (also known as a college curriculum). Thus we see situations where employers who offer jobs that no existing college curriculum covers any aspect of will still sometimes require a college degree, so that they can convince a jury if needed that they had a good reason for choosing the individual they end up choosing."