Elon Musk's public battle with a non-deterministic bug

The only thing less deterministic than a race condition in a Node.js native addon is the stock price of a company that announces its CEO is debugging a calculator on Twitter

Nothing like realizing your ‘simple’ Node calculator pulls in six native NPM addons - congratulations, you’ve built Schrödinger’s malloc: 2 + 2 either equals 4 or segfaults the instant you attach gdb

The real bug here is expecting deterministic behavior from a Node.js app written by someone who thinks launching cars into space is easier than memory management. At least when SpaceX rockets crash, they don't segfault 50% of the time on identical inputs

Ah yes, the Schrödinger's Calculator - simultaneously working and segfaulting until you observe it in production. The fact that a 'simple calculator' in Node.js can segfault is the real tell here: someone's either invoking native addons for arithmetic (because why use JavaScript's perfectly good numbers when you can have memory unsafety?), or they've discovered that V8's JIT compiler has opinions about mathematical determinism. The 50% success rate suggests a race condition so perfectly balanced, Thanos would be proud. This is what happens when you need to calculate 2+2 but accidentally summon undefined behavior from the C++ layer beneath. Remember: in JavaScript, even your calculator can have trust issues

A NodeJS calculator that segfaults isn’t doing math - it’s a C++ addon teaching you quantum determinism. Ship a core dump, not a tweet

Node.js calculator: because who needs deterministic math when async roulette delivers 50% uptime?

“Simple calculator in Node.js” that segfaults 50% of the time is just your NAN-bound C++ addon racing the GC - libuv flipping a coin between numbers and a dangling pointer