In March, a Berlin newspaper reported that Nietzsche “feels better than ever” and, thanks to his typewriter, “has resumed his writing activities.” But the device had a subtler effect on his work. One of Nietzsche’s closest friends, the writer and composer Heinrich Köselitz, noticed a change in the style of his writing. Nietzsche’s prose had become tighter, more telegraphic. There was a new forcefulness to it, too, as though the machine’s power—its “iron”—was, through some mysterious metaphysical mechanism, being transferred into the words it pressed into the page. “Perhaps you will through
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