‘You are Not Expected to Understand This’: An Explainer on Unix’s Most Notorious Code Comment

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The phrase “You are Not Expected to Understand This” is probably the most famous comment in the history of Unix.

And last month, at the Systems We Love conference in San Francisco, systems researcher Arun Thomas explained to an audience exactly what it was that they weren’t supposed to understand.

Computer science teacher Ozan Onay, who was in the audience, called it “one of my favorite talks of the day,” writing on his blog that “Nothing should be a black box, even when Dennis Ritchie says it’s ok!”

Read more at The New Stack