Jen Singerman

Here are the 30 early-stage startups in 2026 most likely to become tech's next unicorns, based on an AI model dubbed "Moneyball for venture capital." Kalshi and Harvey were on our original list in 2023. Who will be next? businessinsider.com/the-30-early-s…

This is the scariest chart you’ll see today.

Just about every reader has imagined redesigning Goodreads. @paulwarren_ and the @readwithmargins team actually did it….and now it’s the App of the Day! When all the news paints a glum picture of reading, it’s exciting to see real innovation and craftsmanship in the book

@david__booth @a16z @eriktorenberg Congratulations!

ok some personal news: 1. I'm joining @a16z! 2. my family and I are moving back to San Francisco 🇺🇸 👋 I’m joining a16z as a Partner and Head of Ecosystem. Excited to be teaming up with @eriktorenberg for a second round, continuing what has become my life’s work. I'll be focused on expanding and reinforcing the multitude of networks spanning our firm; building pipelines for emerging talent, customer networks; products and communities that help founders, operators and investors connect and build together. Feeling charged up, time to build. Some thoughts on why + what 👇 1- "Preferential Attachment" is how startups win. It starts with @pmarca, in conversation with John Collison and Charlie Songhurst on "Cheeky Pint": "…a startup needs to get into a loop where it’s accruing more and more resources as it goes… qualified executives, technical employees, future downstream financing, positive brand momentum, public perception, customers, revenue, ability to throw weight in the government… all of these resources you need to succeed as a business. You’re either a snowball rolling down the hill, picking up resources, gaining size and scope and scale, power, credibility as you go... or you’re not – you’re stuck at the top of the hill as a snowflake, and you’re just not going anywhere." "…the question becomes how do you get started? ...to the point where the next resource that you need is more likely to attach to your thing, as opposed to somebody else. That’s the mechanical process that drives the power law. Economists call it preferential attachment.” Startups win when everything in their world starts to preferentially attach to them. That attachment doesn’t always come naturally... when a company is early in its life, or when a person is early in their career, there’s a trust and credibility hurdle that must be overcome. Friends or supporters could help catalyze an attachment by staking some of their reputation and/or capital, for example a young person with no assets trying to buy a house might ask a trusted friend, family or community member to “co-sign” their mortgage. Raising from a top-tier VC is another such “co-sign.” As Marc continues… “…a top VC is a bridge loan of credibility at a point in time where a startup deserves credibility but doesn’t have it yet. This is then harvested in the form of personnel, customers, brand.” More and more, we see that the Series A and/or B round lead (or absence thereof) is the strongest leading indicator of the ultimate outcome. One bet I’m willing to take is that as everything around us becomes “technology” and earlier stage VC continues to institutionalize, this will only become more true. 2- VC has traditionally done “preferential attachment” non-scalably. Venture capital firms win through building personal trust, hands-on partnership between GPs and their founders. GP “value add” comes via their ability to allocate personal time and attention, make introductions into their personal network, maintain a sense of intimacy with the company and context around the challenges it’s trying to overcome. This has always been the job of the VC. Some do it better than others. But intimacy doesn’t scale. Each new investment divides partner attention further. You can add headcount, platform functions, but traditional ‘services’ approaches hit diminishing returns to scale. Moreover, it doesn’t help you with all of the follow-on preferential attachment that has to relentlessly compound in the snowball’s trip down the hill; nearly as much as you’d like. As a result, venture can feel like the opposite of a network-effect business: the bigger the portfolio, the more dilute your attention, and the weaker VC’s incremental value-add on helping any particular snowflake attach to the snowball. 3- It doesn't it need to be that way. For years I’ve been obsessed with this idea of “turning VC into a network effect business.” One of my early career inflection points was joining AngelList in 2014, where I first saw how software could turn networks into infrastructure—removing friction from company formation, capital raising, hiring, and distribution. This became a thread that would weave throughout my subsequent decade and ultimately led to my teaming up with Erik the first time in 2017, himself fresh out of a similar formative experience at Product Hunt. The insight: VC firms need to think like networked product builders, not just service providers. Instead of dividing attention across n+1 companies, you build systems where value compounds... where founders connect to other founders; where operators can access expertise across the portfolio & broader firm's network; where any "ask" becomes a rallying point for those who share an interest in the topic. Every company you back expands that network, every talented individual who joins becomes another n^2 on it's value as a whole. This is what unlocks scalable preferential attachment. A strong brand signals credibility. A large network provides resources. But each on its own is not enough. The combination—a brand that attracts top talent into a network that makes them more successful, creates a compounding loop that helps drive power law outcomes. The result: a shift from diminishing returns to compounding value. Intimacy and direct relationships with GPs remain central. But those GPs now have a very long lever with which to help founders move the world, and can focus their time/attention on the really critical decisions that founders are facing. A16z is one among very few who have managed to cross this chasm—delivering intimacy and exclusivity on the front end (direct relationships between vertical fund GPs and founders), AND network power on the back—operating a platform that institutionalizes access to resources at a scale few yet understand. 4- We are building the F1 pit crew of venture. Big VC is like Formula 1. Hyper-competitive. Big budgets. Media & brand-driven. Top teams need to win hearts and minds, as well as races. GPs are the drivers—instinctive, highly attuned to the conditions on the road, thinking about what lies around the next bend. The greats go on to become household names, and go on generational winning streaks: Lewis Hamilton, Michael Schumacher… Don Valentine, Marc Andreessen. But when Hamilton stands on the F1 podium, it’s easy to miss the work that went on behind the scenes to get him there. Races are won or lost years in advance by teams who design the right chassis, hire the right engineers, drill their pit crews, build cult-like fanbases to keep the sponsor dollars flowing. VC is the same. The GP has to win the deal. It’s easy to glamorize the Partner who get to stand by the founder ringing the NYSE bell. But at the best firms there’s an invisible engine behind them, a “Pit Crew” that must execute immediately and flawlessly, every time. Adrian Newey didn’t win any races — but his arrival as CTO at Red Bull transformed them from a cash-burning midfield team into a generational, world-champion franchise. And the generational VC firms of the next decade won’t just have the best drivers; they’ll also make deliberate, thoughtful investments in the machines they drive. I believe a16z is the most effective preferential attachment machine in the world—but we're going to make it even better. If “marketing” is the top-down vector of storytelling, “ecosystem” is the bottom-up vector of trust. While marketing expands brand and visibility, helps shape the conversation; ecosystem creates the rooms and networks in which those conversations take place. Ecosystem is the hidden operating system of venture. It’s an understanding that today’s senior product manager is tomorrow’s founder; today’s founder becomes tomorrow’s angel investor or advisor. It’s about building the infrastructure to support those 5-10 year journeys as they play out. When the two are in sync, you get the compounding engine that made Silicon Valley what it is: a dense network of people who believe in the same future—willing, and able to build it together. I’m stoked to come back to SF and help make it happen. We’ll be launching new communities, opportunities soon… for now, if you’re exploring—or in the very early stages of starting a new company, drop me a DM or email via dbooth@a16z.com ++ follow @david__booth for more updates, opportunities to get involved. See you soon! 🫡

@AJ_Odyssey Halo sleep sacks, Snoo (rented it), Magnetic Me onesies - allows you to change bb very quickly and prevent meltdowns, portable white noise machine

What were your absolute best purchases when you had your first baby?

@AlexAndBooks_ In!

We should bring back these classic READ posters

Our CEO @TripAdler in @TheHill: Copyright isn't the obstacle to AI competitiveness. It's the foundation of it.

There is an easy way for LLM companies to play nice with the IP owners who they would be nothing without: 1. respect them 2. pay them 3. ask them for permission @OpenAI is going to lose their @nytimes case, and @disney and @UniversalPics will beat @midjourney. Why not do what I'm explaining in @theallinpod clip below: a. allow NYTimes subscribers to authenticate on ChatGPT and vica versa b. do an exclusive with @disney to include generative AI in their @DisneyPlus accounts? @sama closed OpenAI's IP... and he wasn't happy with @deepseek_ai stole it... so settle these cases with real money and support creators. That would be real leadership! Give content creators 30% of LLM revenue and make the content business sustainable!

Yes. Writing is not a second thing that happens after thinking. The act of writing is an act of thinking. Writing *is* thinking. Students, academics, and anyone else who outsources their writing to LLMs will find their screens full of words and their minds emptied of thought.

As the legal battle plays out between creators and AI companies, @createdbyhumans is advocating for a new vision for how copyright and AI fit together. If we get this right, it will be a win for AI and a win for the American creative industry. Read our blueprint and let us know what you think!

Good discussion on copyright and AI from Friday's @twistartups - thanks for including @createdbyhumans. We want to move beyond lawsuits and build systems that work for creators and AI developers.

RT @alexisohanian: It was only a matter of time before AI video ran headfirst into copyright law. Now we’re in it. You’ve got AI-generated…

RT @AlexAndBooks_: Books don't take time, they GIVE you time: An author spends 4 years studying a specific topic and 1 more year summarizi…

@eriktorenberg Congratulations, my friend! Can’t wait to see what you accomplish there.

I’m excited to share that: 1.⁠ ⁠I’m joining Andreessen Horowitz as a general partner. 2.⁠ ⁠a16z has acquired Turpentine. Everything I’ve worked on over my career has been around investing and building products/networks/media for founders — a16z is the perfect place for me to do this work at the highest level. I’ve long admired the firm’s endless ambition and startup mentality. When I was thinking about starting a firm and asked Ben for advice on how to build the next a16z, he told me “the next a16z is…a16z”. When I told Marc my plans to marry investing, media, and networks, he said “do it all here, but bigger” and crafted the right role to make it all work. As for Turpentine, the shows will continue. I’m proud of what we built and excited to have more resources for supporting our hosts and growing the network. Today I’m feeling deeply grateful for all the entrepreneurs I’ve backed and my incredible team members at each chapter — and fortunate to now work with all the brilliant people at a16z. I’m stoked to partner with the next generation of great entrepreneurs and also hire even more fantastic people into the firm. DMs are open and my email is et@a16z.com.

RT @tripadler: I’m excited to share that just two weeks after our official product launch, @createdbyhumans has raised an additional $5.5 m…

@tripadler is in the hot seat with @alex talking books, AI and Asimov!

RT @m2jr: The @createdbyhumans platform went live yesterday. This is the first time that creators can directly participate in the AI econom…

RT @pubperspectives: AI Rights for Authors: ‘Created by Humans’ Launches | @PorterAnderson publishingperspectives.com/2025/01/ai-rig… @createdbyhumans @tripad…

RT @PublishersWkly: The startup, launched by Scribd cofounder Trip Adler, has unveiled its AI rights licensing platform for authors, which…

RT @tripadler: One of the main reasons generative AI can write so well is that it had 600 years of books written by humans to train on. We…