Why does progressive trigger refinement fail?

The most common reason progressive trigger refinement fails: Spending weeks designing the 'perfect' trigger before ever testing it. You research the ideal conditions, the optimal phrasing, the best environmental setup — and you never actually deploy anything. Or the opposite: you set a broad trigger on day one and never revisit it, accepting a 30% useful-activation rate as 'good enough.' Both failures share the same root cause — treating trigger design as a one-time event rather than an iterative process.

The fix: Pick one trigger you currently use (or want to use) for a behavior you're building. Write it down exactly as it stands. Now run it for three days, logging every time it fires and whether the activation felt useful or wasted. At the end of three days, rewrite the trigger to be more specific based on what you observed. Run the refined version for three more days. Compare the two versions: which one produced more useful activations per total fires? You've just completed one refinement cycle.

The underlying principle is straightforward: Start with broad triggers and narrow them as you learn what works.