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    Stop Saying the Brain Learns By Rewiring Itself

    Most neuroscientists accept that the brain computes by modifying its synapses, the links between neurons. On this view, the brain learns because experience molds it, rather than because experience implants facts. But experience does implant facts. We all know this, because we retrieve and make use of them throughout the day.Illustration by Gary Waters / […]

  • MONIAC American machine diagram

    The Rube Goldberg Machine That Mastered Keynesian Economics

    While researching my soon-to-be-released biography on John Horton Conway, an iconoclastic and very influential mathematician at Princeton, I organized a research trip to his native England. We visited with Conway’s elder sister, Joan, in Liverpool, and convened a reunion at his alma mater, Cambridge. We met there with a few of his “sum chums,” his co-authors […]