Before you move on
Three things worth settling before you touch a line of code — who owns growth, what "activated" means, and the order — then check yourself on the chapter.
In this chapter's workbook
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You can't install a mindset, but there are three things worth settling before you touch a line of code — each takes minutes, and each saves real money later:
- Settle who owns growth — one person accountable for measure → keep → grow. On a solo team that's you; writing it down still helps, because a hat is easier to drop than to wear.
- Try writing what "activated" means for your product in one sentence — the moment a new user first gets real value. The metrics chapter will make it precise; what matters now is committing to the concept.
- Talk the order through with your team — retention before acquisition. It's the single most valuable sentence to get everyone nodding at before any money goes into ads, because it's the one instinct that pulls the other way.
Then, when you're ready: the PostHog chapter is the tool you'll measure with, and why measuring is the job at all.
Quiz
Check your understanding
5 questions, instant feedback — drawn from a pool of 10, so every run is different.
Go deeper
Podcast
The new AI growth playbook for 2026: how Lovable hit $200M ARR in one year
Lenny's Podcast — with Elena Verna
The operator this chapter keeps citing, on what changes — and what doesn't — when the PLG playbook meets AI-speed products. Listen for how much of Lovable's growth is still the instrument → measure → iterate loop.
- OpenView — What is product-led growth? — the origin source; Blake Bartlett coined the term here in 2016.
- Wes Bush — the PLG definition — the canonical strict definition, and the book behind it.
- OpenView — the Product-Led Growth Index — the public-market evidence that product-led compounding gets priced at a premium.
- Reforge — Growth loops are the new funnels — growth as a compounding system rather than a funnel you refill; the engineering-discipline argument at its sharpest.
- Reforge — Building growth: product, process, and team — why growth is a system with three legs, not a hire or a hack.
- Elena Verna — Why, when, and how to add sales to a PLG motion — the hybrid reality: sales layered on top of a working self-serve engine.
- a16z — Growth+Sales: the new era of enterprise go-to-market — the same hybrid pattern from the investor's seat.
- Lenny's Newsletter — 10 growth tactics that never work — the written companion to the Verna interview above; the anti-pattern catalogue.
Before you move on
This chapter's workbook items — sign in free and they save as you go:
The one rule: measure → keep → grow
If one idea from this course sticks, let it be the order. Acquisition is the last lever, not the first — pouring traffic into a product that can't keep users is just buying churn.
Stages of growth: what to care about when
Why 'what to care about' changes as you grow, the five stages from idea to scale, the one question and the one metric that matter at each, the traps that come from running a later company's playbook too early, and the metrics that quietly lie at every stage — in eight short pieces.