Absolutely true: there’ll be folks who understand no mathematics at all and who will try to elbow their way in. There will also be (extending the metaphor) an e

Absolutely true: there’ll be folks who understand no mathematics at all and who will try to elbow their way in. There will also be (extending the metaphor) an ecology of instrument-makers and lens-grinders who somehow become party to the debate. But to be Frank (though I am James) mathematicians will recognise their own.