add field notes from founder interviews: interview quality test and benchmarks

README.md

@@ -125,6 +125,46 @@ Real framework from $50M+ ARR exits — not vague "talk to users".
 
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+## 🆕 What's New (July 2026): Field Notes from Founder Interviews
+
+Fresh observations distilled from our founder podcast series. They sharpen — not replace — the protocols above.
+
+### The One-Line Test for Interview Quality
+
+A useless interview looks like an investor pitch: you talk 80% of the time and the user quietly zones out. A good interview looks like a walkthrough: the user shares their screen and drives, showing you their real use cases step by step.
+
+The uncomfortable constant behind this test — the user journey you imagined and the journey users actually take are almost never the same. Screen sharing is how you find the gap; talking at users is how you hide it.
+
+### "Willing to Pay" Is Not Paying
+
+Saying "I'd pay for this" in an interview and actually entering a card number run on two different logics. Interview answers are social; payments are economic. Treat stated willingness as a hypothesis, then validate it with real payment behavior — a paywall, a pre-order, a paid pilot — before you count it as demand.
+
+### Benchmark Anchors (Reported)
+
+- Gamma, HeyGen, and Lovable reportedly ran on the order of 500–1,000 user interviews within roughly their first 6 months — before scaling spend.
+- The counter-example burn path: skipping that phase and buying growth instead, at tens of dollars per signup and hundreds of dollars per paying user, with no compounding insight to show for it.
+
+The order matters: interviews first, scale second.
+
+### The Feedback Loop That Drives Retention
+
+One pattern kept recurring among teams with strong retention:
+
+1. A deep user writes a 2,000-word review with screenshots.
+2. The whole team breaks it down together, issue by issue.
+3. Every issue gets fixed within 1–2 months.
+4. Someone goes back and tells the user: "your issue is fixed."
+
+Step 4 is the one most teams skip — and it is the step that closes the loop and drives retention. Feedback that visibly changes the product turns reviewers into advocates.
+
+### Trust Benchmark (Self-Reported)
+
+One founder's report: daily frontline chats with users built more trust in 2 months than colleagues had accumulated in over a year. Trust with users compounds at the speed of contact, not tenure.
+
+*Distilled from 12 founder podcast interviews (2024–2026); figures are self-reported or reported.*
+
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+
 ## 🤝 Work With Iris
 
 Need 1-on-1 PMF strategy or founder-led interview coaching? Reach out via [Telegram @Iris_carrot](https://t.me/Iris_carrot) or visit [gingiris.tools](https://gingiris.tools).