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27332

1k True Fans? Try 100 (2020)

More than a decade ago, Wired editor Kevin Kelly wrote an essay called “1,000 True Fans,” predicting that the internet would allow large swaths of people to make a living off their creations, whether an artist, musician, author, or entrepreneur. Rather than pursuing widespread celebrity, he argued, creators only…

27333

Ceiling Air Purifier

Imagine a high-capacity air filter that is extremely quiet and doesn't get in the way. I think I see how to build one; here's a prototype: By putting a fan on the ceiling you can have very long blades. This is important for keeping noise down: the longer your blades are the more air you move at a given rotational…

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The First Lisp Compiler

This page examines the earliest surviving Lisp compiler, written by Timothy Hart and Michael Levin around 1961. To avoid repetition of phrases like “the compiler”, we will use the abbreviation “ HLC ” (for “Hart–Levin Compiler”) to refer to it. The HLC was introduced in M.I.T. AIM -039 and documented more fully in the…