Claim
Every loop decays. Andrew Chen's Law of Shitty Click-throughs — over-optimizing a single channel produces diminishing returns — applies to growth loops as well. Allocate 20–25% of the growth team's annual time to introducing new loops with no metric expectation for the first 12–18 months. Without a runway, every new loop dies before it has a chance to compound.
Mechanism
A loop's economics are non-linear in time. Months 1–12 produce noisy data and small results. Months 18–36 are where compound effects appear. Most teams kill loops at month 6 because they aren't pacing the existing loops. Pre-allocating capacity and removing the ROI gate during the seeding period preserves enough loops to ride out their slow start.
Conditions
Holds when:
- The org has a stable senior team that can absorb the long horizon politically.
- The new loops are genuinely different growth models, not variants of existing ones.
Fails when:
- The org is in cost-cutting mode and 12-month no-metric work is impossible to defend.
- The loops are added cosmetically (every quarter, "new initiative") without real engineering investment.
Evidence
"Most loops decay over 5–7 years; some, like Dropbox sharing, don't. Allocate 20–25% of the growth team's annual time to introducing new loops with no metric expectation for the first 12–18 months."
Elena cites her own experience across Dropbox, Miro, SurveyMonkey, and Amplitude — the durable loops are always the ones that got the multi-year runway, not the ones launched and judged in a quarter.
— Elena Verna on Lenny's Podcast, 2026-04-28
Signals
- The team has a named portfolio of loops — currently funding, currently seeding, retired.
- Leadership defends the seeding loops in OKR reviews without ROI justification.
- One in four loops eventually compounds; the rest are killed honestly after the runway.
Counter-evidence
For pre-PMF or distressed companies, this rule is a luxury. Elena explicitly notes "growth teams cannot fix declining businesses." Add new growth models only when the existing ones are healthy enough to fund the experimentation.
Cross-references
- Build earned channels — every dollar in algorithm channels makes Google richer, not you — the strategic frame inside which loop diversity matters