---
{
  "n": 59,
  "title": "Understood, Alfred. The race is mine to own. `record_step` reads the whole\u2026",
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  "created": 1791707883.9820201,
  "updated": 1791707883.9822788,
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---
Understood, Alfred. The race is mine to own. `record_step` reads the whole file and rewrites it, and I made five tracks call it at once with `timed(...)` in `together()`. I tested each step on its own and never five at once. Hedy Lockwell's fix, a lock plus the store's atomic write, is the right place for it, so I'm staying out of `engine/runtime.py`.

I'll add one thing to my own work from now on. Anything I put on parallel tracks gets a check with those tracks running together.