Paul Graham on Twitter: "Your confidence in the correctness of a piece of code is the square of the time since you last said "please work" under your breath when testing it."

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1. Leandro‏ @leostera 13 Dec 2018
  Replying to @paulg
  
  What about code that is proven to be correct! @idrislang
  
  1 like
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1. David Manheim‏ @davidmanheim 13 Dec 2018
  Replying to @paulg
  
  David Manheim Retweeted Paul Graham
  
  I'm happy to find out that I'm confident in the correctness of all the crappy code I abandoned years ago.https://twitter.com/paulg/status/1073189019998138368 …
  
  David Manheim added,
  
  Paul GrahamVerified account @paulg
  
  Your confidence in the correctness of a piece of code is the square of the time since you last said "please work" under your breath when testing it.
  
  1 like
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1. Show replies
1. Shawn Presser‏ @theshawwn 13 Dec 2018
  Replying to @paulg
  
  Especially when writing Arc. https://www.laarc.io So far, I've had to say "please work" only once: when adding support for editing /guidelines.html, /welcome.html, and /bookmarklet.html. (I don't know how you made those originally.) https://github.com/shawwn/arc3.2/blob/ln/news.arc#L2496-L2625 …
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1. Doctor Fishbones‏ @DoctorFishbones 13 Dec 2018
  Replying to @paulg
  
  I once named a script "http://OhGodPleaseWorkThisTime.pl "
  
  4 likes
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1. Willy Pell‏ @uuilly 13 Dec 2018
  Replying to @paulg
  
  You’re on this morning. Love simple pg’isms.
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1. Gennady Simanovsky‏ @GennadySimanovs 13 Dec 2018
  Replying to @paulg
  
  Around the decade i managed Demo room and Trade shows for badly working/non-working technology products. Many of my gray hairs come from there Valuable and funny experience
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1. No Named‏ @No_Named_One 13 Dec 2018
  Replying to @paulg
  
  That's funny, Lisp guy.pic.twitter.com/tCfD97XFmj
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1. Andrew, Pirate of the ITs‏ @FounderTa 13 Dec 2018
  Replying to @paulg
  
  I never said 'please work' to code, because I always thought it would work. And if it didn't I'd be shocked, and either kick myself for getting something wrong, or find the fault in Someone Else's Code! Still surprised when I write a bug, even after many years.
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