Ian Brown on X: "Donald J. Horsfall, 72, Rydal, Pa., co-wrote nine books about computi…"

I read the news today, oh boy.

Ian Brown @igb

Donald J. Horsfall, 72, Rydal, Pa., co-wrote nine books about computing.

inquirer.com/obituaries/cor…

4:19 PM · May 24, 2020 View on Twitter ↗

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Adam Schlesinger, 52, Poughkeepsie, N.Y., songwriter for rock, film, and the stage.

youtu.be/TVoFq7zc5po

John Horton Conway, 82, New Brunswick, N.J., mathematician known as the "magical genius".