Jon Pretty

@propensive

Scala 3 developer

Germany

invariant.blog

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Jon Pretty
@propensive
Sep 11, 2025
I am very happy to announce that will be speaking at Scala.io in Paris on 17 October! This will be my first conference talk since 2019, and I'm going to try to make it the best ever! I will introduce soundness.dev to the world: a tour de force of all the
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Jon Pretty
@propensive
Sep 23, 2025
I'm currently enjoying @sapinker's When Everyone Knows That Everyone Knows... in which he includes the puzzle I knew as the "brown- and blue-eyed islanders problem". Though he reframes it with diners, some of whom have spinach on their teeth—possibly as an excuse to coin the word
Steven Pinker
@sapinker
Sep 23, 2025
“When coordination works, everybody wins” – Listen to an excerpt from my audiobook When Everyone Knows That Everyone Knows…to unpack how common knowledge is necessary for coordination. Pick up your copy from @SimonAudio: bit.ly/4gxl0bD
00:00
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Jon Pretty
@propensive
Sep 11, 2025
While this looks like a lot, maintaining over 100 repositories with dependencies between them means that these statistics really flatter my apparent productivity...
Matej Cerny
@matej_cerny
Sep 11, 2025
Bloody mental! 🤯👏
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Jon Pretty
@propensive
Sep 8, 2025
This is my tenth and final post of evidence refuting the allegations about a relationship that ended my career four years ago. I address six alleged "incidents", which were made to look like "harassment" after my ex asked to cut off all contact. But all six were just ordinary
Jon Pretty
@propensive
Sep 4, 2025
On Hacker News the word "rape" was mentioned 205 times in response to the publications that got me canceled. My accuser said she didn't remember how much she drank before we had sex. But even if it were true, she could have worked out how little it was. pretty.direct/alcohol
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