The a16z Podcast
The a16z Podcast

Kickstarting Network Effects

Network effects can be found powering almost every major technology company, from messaging apps and workplace collaboration tools, like Slack and Zoom, to marketplaces, like Airbnb and Instacart to even the internet itself. In this podcast, we look at the role of network effects creator-driven soci

Featured Speakers

a16z HostAndrew Chen GuestPaul Davison Guest

Topics Discussed

Episode Summary

Executive Summary: The conversation explains how network effects form, why they make startups hard to launch, and how founders can engineer early density through tiny communities, creator-first product design, and even temporary “fake it” tactics. Alexis Ohanian, Paul Davison, and Andrew Chen compare Reddit and Clubhouse’s early growth, then argue that Web3 changes incentives by giving creators and communities ownership, making community economics more aligned from day one.

Main Topics: What network effects are and why they’re hard at startup stage (Priority: 5/5): Andrew Chen defines network effects as products becoming more useful as more users join, while noting the startup challenge: without enough friends, colleagues, or peers already there, nobody wants to use the product. Cold start problem and atomic networks (Priority: 5/5): The speakers describe the need to find the smallest viable cluster of users that makes the product stable—whether a college campus, a team, a city, or a small room—rather than trying to acquire broad, untargeted users all at once. Reddit and Clubhouse early growth tactics (Priority: 5/5): Alexis and Paul share concrete launch tactics: recruiting from existing communities, faking activity or users where necessary, and personally welcoming every new user to create the sense of a living community. Creator-first curation and community norms (Priority: 5/5): The discussion emphasizes that who is on the network, why they are there, and how they behave matters as much as product design; founders must role-model desired norms and cultivate a minimum viable community before scaling product features. Scaling tensions: creators, moderators, and professionalization (Priority: 4/5): As platforms grow, creators and moderators become more powerful and more professionalized, demanding better tools, analytics, monetization, and control—while platforms risk alienating them if those needs are ignored. Web2 vs Web3 incentives and ownership (Priority: 5/5): The speakers argue that Web3 introduces ownership and direct economic alignment between platforms and creators, potentially replacing ad-driven incentives that often distort engagement in Web2. Future of community-led business models (Priority: 4/5): Revenue is increasingly tied to creator growth, with examples like merch, memberships, and status products showing that communities will pay for belonging, utility, and prestige when the alignment is authentic.

Key Arguments: Network effects require a small, stable atomic network before broad scale matters; early success comes from finding the smallest group that genuinely wants to interact. The earliest users should be curated carefully because the behavior of those first members sets the norms for everyone else who arrives later. Doing things that don’t scale—personal onboarding, handholding, manual curation, and even temporary fake activity—can be necessary to solve the cold start problem. Authenticity is essential: founders cannot manufacture culture they do not genuinely believe in, especially when trying to appeal to younger audiences or creators. Creator-first platforms must give creators meaningful control; otherwise they risk losing the people who generate the most value. As networks mature, professional creators and power users need better tools, analytics, discovery, and monetization to stay engaged. Web3 may make the “community economy” healthier by aligning ownership and incentives from the outset instead of retrofitting monetization later. The platform era is shifting from growth-at-all-costs engagement models toward models where individual creator success and platform success move together.

Data Points: Reddit launch year: 2005 - Alexis Ohanian discusses launching Reddit in June 2005, before Twitter existed and when Facebook was one of the only social media sites. Forum community size before Reddit launch: about 750 members - Alexis recruited from a PHP BB forum he had run in college for two years. Initial turnout from forum community: about 20 people - Only a small fraction of the forum community tried Reddit at first. Clubhouse early product structure: single room - Paul Davison explains that in the earliest days, the whole app was one room with no audience/speaker distinction. Early Clubhouse follow graph: none - Everyone followed everyone in the earliest version of Clubhouse. Minimum viable network examples: 2-3 people - Andrew says products like Zoom and Slack could show recurring value with only a few people in the network. Airbnb viability threshold: ~300 listings in a city - Andrew cites Airbnb as needing enough listings before a city became viable. Uber viability threshold: a couple dozen drivers / pickup under 15 minutes - Andrew notes Uber needed enough driver density to keep pickup times consistently under 15 minutes. Reddit default communities count: 15-20 - Alexis explains that early default subreddit subscriptions created concentrated power among a small group of moderators. Weekly community town hall: every Sunday at 9 a.m. - Paul describes Clubhouse’s recurring community session as the app grew. Town hall duration growth: from 1 hour to 4.5 hours - Clubhouse’s live community meetings expanded until the format no longer scaled. Reddit merch inventory: about 300 shirts - Alexis describes buying and storing 300 shirts for the first merch drop. Merch shipping process: garbage bags - Alexis hand-packed and shipped early Reddit merchandise himself. TotalFARC membership fee: $10-$15 per month - Alexis cites FARK’s paid membership model as inspiration for Reddit Gold-style offerings.

Pivotal Quotes: "for networked products, the curation of the network who's on it, why they're there and how they interact with each other is as important as its product design." — Andrew Chen: Andrew’s framing of why early network composition matters as much as feature set. "minimum viable community is going to be more important than minimum viable product." — Andrew Chen: Andrew argues that in 2021 and beyond, community quality matters more than shipping a basic product first. "We decided in the early days, like every single time you have that situation, we will pick you. We will always pick the creator." — Paul Davison: Paul explains Clubhouse’s creator-first policy when creator and listener preferences conflicted.

Implications: Founders should design for tiny, high-density communities first, then expand by preserving norms and rewarding creators. In Web3, ownership and monetization may be more native, making community alignment a core product advantage.

From the Transcript

Thought was really fascinating. And it said: for networked products, the curation of the network, who's on it, why they're there, and how they interact with each other, is as important as its product design. And so I think this is kind of an interesting point. How do you get the right network? How do you think about different types of users and creators? And then how do you roll out the right features as the network starts to grow? It's kind of like being a party host. You spend a lot of your time, you know, the kind of stuff Paul's talking about, just making people feel welcome. Of role modeling the behavior you want to see. When I coach founders now, it's about helping them understand their job is to get to a minimum viable community. And you role model behavior in the same way that if you walk, if I invite you over to my house for a party and you see me, as soon as you walk in, you see me as the host doing a cake stand, you immediately have a sense of how you should behave. Whereas if you walk into my house for a party and I'm wearing nice clothes and I'm sipping on some wine and having some polite conversation, you instantly have some.

Andrew Chen · at 8:49

Guidance for how you should behave. It's the exact same thing, even when you step into an online forum or an online community. And this is more relevant than ever in 2021. Minimum viable community is going to be more important than minimum viable product. Because with everything happening around no-code and just all of the kind of aptitude around shipping software now, building that VWANA product that doesn't suck is actually not that hard. Building a minimum viable community of people who really And you're seeing this now all over with Web3, where so many of these PFP projects, the really well-executed ones, they're a case study in minimum viable community because there's, in some cases, literally nothing else other than maybe some JPEGs. And I look at that and I get really excited because I think this is such a human act to build community. And it's something that's going to be so important now, not just the act of doing it, but even the metrics that we measure, the analytics and the risk.

Andrew Chen · at 9:49

On, and I want to come up and speak my mind, but you don't want me to. We decided in the early days: like every single time you have that situation, we will pick you. We will always pick the creator. And that allows people to form their own communities and their own clubs and their own norms, and for that mitosis to happen. Yeah, that's fascinating. I want to come back to this idea of kind of keeping control of the platform while giving control to your creators. You know, we've talked about all the different ways you can get them. Up and running, you know, kind of this idea of flintstoning. It's not just faking users, it's kind of in some ways doing the things that don't scale in those early days. But I kind of want to shift now and talk about like as you start to get through those atomic networks and as your network starts to take hold and you have that community, how does the relationship to creators change as a startup grows? And kind of what are the new problems that start to emerge? Alexis should go because Reddit has had the most interesting.

Paul Davison · at 16:49
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About The a16z Podcast

The a16z Podcast discusses tech and culture trends, news, and the future – especially as ‘software eats the world’. It features industry experts, business leaders, and other interesting thinkers and voices from around the world. This podcast is produced by Andreessen Horowitz (aka “a16z”), a Silicon Valley-based venture capital firm. Multiple episodes are released every week; visit a16z.com for more details and to sign up for our newsletters and other content as well!

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