
The hierarchy of engagement | Sarah Tavel (Benchmark, Greylock, Pinterest)
Sarah Tavel (guest), Lenny Rachitsky (host), Narrator, Narrator
In this episode of Lenny's Podcast, featuring Sarah Tavel and Lenny Rachitsky, The hierarchy of engagement | Sarah Tavel (Benchmark, Greylock, Pinterest) explores designing enduring products and marketplaces through focused engagement hierarchies Sarah Tavel outlines two core frameworks: the Hierarchy of Engagement for consumer products and the Hierarchy of Marketplaces for marketplace businesses. Both are meant to strip away vanity metrics and refocus founders on what actually creates durable value: deep engagement and genuine customer happiness.
Designing enduring products and marketplaces through focused engagement hierarchies
Sarah Tavel outlines two core frameworks: the Hierarchy of Engagement for consumer products and the Hierarchy of Marketplaces for marketplace businesses. Both are meant to strip away vanity metrics and refocus founders on what actually creates durable value: deep engagement and genuine customer happiness.
For consumer and social products, she emphasizes identifying a single core action, making the product better with each use (retention), and then building self-perpetuating loops (network effects and growth loops).
For marketplaces, she argues that chasing GMV and TAM is misleading; instead, founders should first tightly focus on a small ‘thimble’ market, then tip that market via growth and happiness loops, and only then blitzscale to dominate.
Across both frameworks, she stresses ruthless focus, intellectually honest metrics, choosing markets with strong ‘currents’ of change, and never resting on perceived network-effect moats.
Key Takeaways
Define a single core action and make it your true north.
Every successful consumer product has one foundational action (pinning on Pinterest, subscribing on YouTube, sending a message in WhatsApp) that both reflects user understanding of the product and strongly predicts retention. ...
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Retention comes from products that get better the more you use them.
To be retentive, a product must both improve with each use and create ‘mounting loss’ if a user leaves (e. ...
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Build self-perpetuating loops instead of relying on paid growth.
Level three of engagement is about turning user ‘kinetic energy’ into loops that feed back into the product: network effects (user actions improving the experience for others), growth loops (invites, sharing, SEO, collaborative use), and re-engagement loops (notifications tied to user-to-user interactions). ...
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GMV and MAUs are vanity metrics unless they reflect true happiness.
Marketplaces optimizing only for total GMV, like consumer apps optimizing for MAUs, can grow in ways that don’t build durable value. ...
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Start marketplaces in a tiny ‘thimble’ and create a white‑hot center.
Successful marketplaces begin with extreme focus: a specific geography and/or narrow vertical where they can make both sides very happy (e. ...
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Engineer tipping via growth loops and happiness loops.
A marketplace ‘tips’ when growth suddenly gets easier—e. ...
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Care more about market currents than market size.
Benchmark prefers underestimated, changing markets with strong ‘currents’ (structural shifts, new tech, behavior changes) over obviously huge TAMs. ...
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Notable Quotes
“I have an allergic reaction to vanity metrics.”
— Sarah Tavel
“When a user completes this core action, it's clear they understand the utility of the product and are likely to come back.”
— Sarah Tavel
“Customers don’t care how big you are. They care how happy you make them in each transaction.”
— Sarah Tavel
“The most ambitious founders don’t try to warm the whole ocean. They focus their ambition like a laser beam on a thimble.”
— Sarah Tavel
“I actually think that the most interesting markets, you have to think of them like currents, not bodies of water.”
— Sarah Tavel
Questions Answered in This Episode
How can I rigorously identify my product’s true core action and validate that it causally drives retention rather than just correlates with it?
Sarah Tavel outlines two core frameworks: the Hierarchy of Engagement for consumer products and the Hierarchy of Marketplaces for marketplace businesses. ...
Get the full analysis with uListen AI
What specific accruing benefits or ‘mounting loss’ mechanisms could I add so that each additional use of my product makes it harder for users to leave?
For consumer and social products, she emphasizes identifying a single core action, making the product better with each use (retention), and then building self-perpetuating loops (network effects and growth loops).
Get the full analysis with uListen AI
In my marketplace, what would ‘happy GMV’ look like in terms of observable metrics, and how can I adjust my reporting to prioritize that over raw GMV?
For marketplaces, she argues that chasing GMV and TAM is misleading; instead, founders should first tightly focus on a small ‘thimble’ market, then tip that market via growth and happiness loops, and only then blitzscale to dominate.
Get the full analysis with uListen AI
What is the smallest possible ‘thimble’—in terms of geography, segment, or category—where I could realistically create a white‑hot center and tip the market?
Across both frameworks, she stresses ruthless focus, intellectually honest metrics, choosing markets with strong ‘currents’ of change, and never resting on perceived network-effect moats.
Get the full analysis with uListen AI
Which organic growth and happiness loops might already exist in my product or marketplace, and how could I deliberately strengthen and instrument them to approach a tipping point?
Get the full analysis with uListen AI
Transcript Preview
I think a lot of people think about markets almost like these, like, bodies of water, you know? And it's like, "Oh, it's this big body of water that we're going after." And I actually think that the most interesting markets, you have to think of them like currents, where you're just trying to... There's something happening in the market that's creating this current, where you can have, like, a plank of wood that you put on the, on the river and it's gonna pull you forward, versus a market that doesn't really have that momentum to it, you're gonna have to build, like, something really big and fancy to make any progress. And that's why we care less about market size, because really what you're looking for when we- you're looking at a market are: What are the dynamics of change? What's the current and momentum that's gonna pull the company and make the job easier for the founders to actually build something that endures?
(instrumental music) Today my guest is Sarah Tavel. Sarah is a partner at Benchmark, one of the most pre-eminent venture capital funds in the world, where she focuses on investing in consumer and marketplace startups. Prior to Benchmark, Sarah was the first product manager at Pinterest. And though I normally have a policy against VCs on the podcast, as you'll see, Sarah thinks very much like a product and growth leader, and I always learn a ton talking to Sarah about startups and marketplaces. We also learned in our conversation she used to play rugby, and was apparently one of the best tacklers in her league. In our conversation, we unpack two of Sarah's killer frameworks for building a startup: one, the hierarchy of engagement, which is an incredibly useful lens for trying to figure out how to grow and scale your consumer startup; and then the hierarchy of marketplaces, which is an incredibly useful guide for helping you build your marketplace startup. If you're building a consumer startup or a marketplace, this episode is for you. We get really nerdy and really deep, just the way I like it. With that, I bring you Sarah Tavel after a short word from our sponsor. This entire episode is brought to you by Gelt, your gateway to smarter tax solutions. Navigating the world of taxes can be complicated and stressful. Gelt is here to change that. They blend advanced technology with expert CPA knowledge to handle your taxes effortlessly. Whether you're a business owner, investor, or executive, Gelt is here to optimize your tax strategy and enhance your financial success. People working at companies such as Notion, Google, and Lyft have already experienced the Gelt difference. They've seen significant savings and a transformation in their tax handling. And now, it's your turn. Why choose Gelt? Because they offer year-round, proactive tax planning and clear, fast communication. With their technology, you'll stay ahead, making the most of every tax benefit. Ready to elevate your tax strategy? Visit joingelt.com/lenny today. With Gelt, you'll save more and stress less. Again, that's joingelt.com/lenny. Join, G-E-L-T, .com/lenny. Redefine your approach to taxes with Gelt. (instrumental music) Sarah, thank you so much for being here, and welcome to the podcast.
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