Sometime in the future we might encounter a new kind of diabetic patient with no injections, batteries, or beeping monitors (instead, the batteries and monitors will be worn, like those getting deep brain stimulation for Parkinson’s disease or depression). After so many winding errors and misconceptions, one murder, one throttling, one Nobel Prize split into four—and that unforgettable moment of a blue stain spreading on a cluster of cells—we may have solved the conundrum of the two-minded organ and made it into a bioartificial self. Once that neo-organ integrates into our bodies, the
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