What are school tests trying to measure?

I’ve just started reading The Lady Tasting Tea, the story of statistics in/and modern science. But one of the early examples has gotten me thinking – how would a scientist go about testing the general intelligence/retained knowledge of a group of students? Given: Whatever we measure is really part of a random scatter, whose probabilities […]

Another adjacent possible

Working my way through one of the more fascinating technology books I’ve ever come across, Code by Charles Petzold. I stumbled across this passage: …nobody in the nineteenth century made the connection between the ANDs and ORs of Boolean algebra and the wiring of simple switches in series and in parallel. No mathematician, no electrician, […]


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