Doug McIlroy emailed me afterward to say that he's never heard of its being derided as not a real sieve. Certainly, no-one of his generation would do so, I imag

Doug McIlroy emailed me afterward to say that he's never heard of its being derided as not a real sieve. Certainly, no-one of his generation would do so, I imagine. But as the article proves, younger folks are more playful. In Doug's email he also pointed me to this little nugget he wrote: http://www.cs.dartmouth.edu/~doug/sieve/ http://www.cs.dartmouth.edu/~doug/sieve/ The late Dennis Ritchie 'wrote the first coroutine sieve' using Unix pipes! What a wonderful reminder of the power of Unix compositionality, which is at the heart of the laziness experiment known as Haskell.