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Intent signals vs. rules: the quiet end of the segment builder

Hand-built audience rules don't survive contact with a real funnel. Continuous intent scoring is replacing them — and it's about time.

Priya Shah
Co-founder, Notch
· 7 min read
Growth7 min read
#intent#segmentation#ai

The segment builder was always a lossy abstraction

Every lifecycle tool ships with the same UI: drag attributes, pick operators, save the rule, send the email.

It looked like control. It was actually a snapshot — frozen the moment you saved it, drifting away from reality the second a user did something unexpected.

What "real" intent looks like

A user who:

  • Visited /pricing three times this week
  • Invited two teammates yesterday
  • Replied "later" to the Day 3 onboarding email

…is not the same as a user who fits the same static segment but did none of those things. Yet most tools treat them identically.

Continuous scoring, simply

Continuous intent scoring is just three ideas:

  1. 1Every event nudges a per-user vector (signal, magnitude, decay)
  2. 2The vector maps to a stage (exploring, evaluating, buying, stuck, at-risk)
  3. 3Outgoing messages are conditioned on that stage in real time

You don't maintain segments. You maintain signals — and the signals do the segmenting.

The real win isn't accuracy. It's that you stop debating segment definitions in product reviews and start debating the messages themselves.

The migration path

If you're moving off rule-based segments, don't rebuild them 1:1. Pick the three highest-leverage stages in your funnel and let the model own those first. The rest of your old segments will quietly become irrelevant within a quarter.

Tagged#intent#segmentation#ai
Priya Shah
Co-founder, Notch

Writes about lifecycle, intent, and what changes when AI gets the keys to the funnel.

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