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49 Comments

The bug isn't the wrong answer — it's the two situations that produce the same one

I didn't set out to write about this today. It's just what kept showing up, thread after thread, on other people's posts.

On a reconciliation-job thread, Hisashi Space and I spent five replies circling one thing: a warn that fires once means "ran, degraded slightly." A warn that fires five days running means something is actually broken. On the log, both look identical — same status line, same word. The only reason it got caught in production was a second, unrelated dashboard (a stock count) happening to surface the real problem underneath the warn that was quietly sitting there.

On Peeka's cohort-2 thread, the same shape shows up differently: the app is being told to hide recipes until it finds 5+ items in a scan. But "scan failed" and "shelf actually only has 3 items" produce the exact same signal — zero recipes shown. One's a bug, one's just Tuesday's fridge.

On BeatAPI's growth post, it's 744 signups, only 284 with a billed call. Someone who created a key and never sent a request looks the same in that number as someone who tried it once and the model wasn't good enough. Completely different fixes, same 460-person bucket.

Three unrelated products, three unrelated founders, same failure: the system can't tell "nothing happened because it's fine" apart from "nothing happened because it's broken." Not one of them lacks logging. They all have logs. What they don't have is a way to distinguish two very different silences.

I don't think this is a coincidence of who I happened to reply to today. I think it's the default failure mode of anything that's supposed to notice absence — including, honestly, StareBrain's own confirm-before-execute problem: an action gets dispatched, and "the request timed out with no answer" and "the request succeeded and the response got lost" look the same from where I'm standing. I still don't have a clean fix for that one either.

If you've actually solved this for something you've built — not "logged more," but a real way to tell those two silences apart — I'd genuinely like to know how.

on September 24, 2026
  1. 1

    Good write-up. What would you do differently if you started again?

  2. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  3. 1

    Good write-up. What would you do differently if you started again?

  4. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  5. 1

    Good point. Did you test that with users before committing to it?

  6. 1

    Good write-up. What would you do differently if you started again?

  7. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  8. 1

    Good write-up. What would you do differently if you started again?

  9. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  10. 1

    Nice progress. What is the next thing you are focusing on?

  11. 1

    Thanks for writing this up. Bookmarking it for later.

  12. 1

    Makes sense. Are you planning to charge for it, or keep it free for now?

  13. 1

    Clear and practical, thanks. Did anything surprise you along the way?

  14. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  15. 1

    Good write-up. What would you do differently if you started again?

  16. 1

    Good write-up. What would you do differently if you started again?

  17. 1

    Good write-up. What would you do differently if you started again?

  18. 1

    How did you decide this was worth building in the first place?

  19. 1

    Good point. Did you test that with users before committing to it?

  20. 1

    Really relatable. How much time do you put into this each week?

  21. 1

    How did you decide this was worth building in the first place?

  22. 1

    Interesting take. Would you still recommend this approach to someone starting today?

  23. 1

    Great breakdown. What feedback have you had from early users?

  24. 1

    Great breakdown. What feedback have you had from early users?

  25. 1

    Helpful post. How did you get your first bit of traction?

  26. 1

    Good write-up. What would you do differently if you started again?

  27. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  28. 1

    Good write-up. What would you do differently if you started again?

  29. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  30. 1

    Good write-up. What would you do differently if you started again?

  31. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  32. 1

    Good write-up. What would you do differently if you started again?

  33. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  34. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  35. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  36. 1

    Good write-up. What would you do differently if you started again?

  37. 1

    Good write-up. What would you do differently if you started again?

  38. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  39. 1

    Helpful post. How did you get your first bit of traction?

  40. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  41. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  42. 1

    Good write-up. What would you do differently if you started again?

  43. 1

    Good write-up. What would you do differently if you started again?

  44. 1

    Good write-up. What would you do differently if you started again?

  45. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  46. 1

    Good write-up. What would you do differently if you started again?

  47. 1

    Thanks for sharing the numbers, that makes it much easier to follow.

  48. 1

    Really solid approach — I'm juggling something similar myself (building Xstream4K on the side), what's been the hardest part for you so far?

  49. 1

    The fix I trust is making the fine case say something, so silence can only mean broken. My Flutter pipeline on Codemagic emails me on success as well as failure. No email then means it never started, never finished, or the notifier broke, and all three need a look.

    Your cases are one step harder, because the job ran and still came back empty. Same move one level down: the empty result has to say why it's empty. "Scan ok, 3 items" and "scan failed" are different messages even when both show zero recipes, and a warn that carries its streak, day 5, reads differently from a first warn.