The task of economic planning in the new nation of Nigeria in theearly 1960s tested the limits of economic technologies: its recipesfor development, its possibilities of measurement, and fromdifferences in political economy. These dimensions of the problembeset not only the Nigerian politicians...

For the purposes of calculation, context is irrelevant: one is expected to strip away the “contingent” details, slot bare numbers into the equations, and perform the relevant maths. Medical doctors must know this. So why, asked just such a question about the likelihood of a diagnostic test...