Every few months, the internet reminds founders what virality looks like.
A tool appears out of nowhere, timelines fill with screenshots, and early users evangelize it like they’ve discovered a secret. Recently, moments like the viral debut of the internet’s favorite new AI agent Moltbot (formerly known as Moltbot) on X showed just how quickly attention can snowball when a product feels fresh, weird, or fun enough to share.
But bursts of social virality are one thing, and sustained product virality – the kind that compounds into a business – is another.
The LinkedIn lesson of virality
Few founders talk about that distinction more clearly than Rahul Vohra, founder and CEO of email app Superhuman. To him, his career is almost like a clear case study when it comes to the difference between real growth and short-held enthusiasm.
Before Superhuman, Vohra co-founded Rapportive, a Gmail plug-in that LinkedIn acquired in 2012. The deal placed him inside one of the most sophisticated growth organizations in tech – just after the company had completed its explosive expansion phase.
That earlier surge had been led in part by Elliot Shmukler, who helped scale LinkedIn from roughly 25 million to more than 250 million users. Although Vohra joined after that period, studying how it happened and working inside the system it created gave him a rare view into how viral mechanics behave in the real world.
He saw how tools like address-book invites allowed LinkedIn to spread through entire social graphs. But he also absorbed a quieter lesson when it comes to realising that even the strongest viral loops eventually slow. Vohra has since said that viral coefficients rarely stay above about 0.7 for long, and even legendary growth runs plateau.
The takeaway wasn’t that virality fails – it’s just that math alone can’t carry a product forever.
Why the best viral loops are emotional, not mathematical
When Vohra created Superhuman, he didn’t just want another email app. He aimed for something sharp, fast, and made for people who want to get more done without fuss. Superhuman’s speed, rich keyboard shortcuts, and clean design make it feel like a product crafted for ultimate efficiency.
But the real cleverness was in how new users got started. You couldn’t just sign up and jump in. Instead, Superhuman used live onboarding sessions (and yes, they were personal and time-consuming). This effort helped turn users into true fans who then told others about the product.
That word of mouth, he says, did more for growth than any engineered viral trick.
Rahul has talked openly about this in interviews, like his March 2025 podcast with Lenny Rachitsky, where he shared what Elliot Shmukler really taught him: real virality comes from users loving a product so much they tell others on their own.
