Building One with Tomer Cohen

What if the biggest problem in healthcare isn’t diagnosis — it’s capacity? On this episode of Building One, Tomer Cohen sits down with Dr. Thomas Kelly, co-founder and CEO of Heidi, to unpack what it actually takes to build AI for one of the most complex, regulated, and human industries in the world. Before starting Heidi, Tom was a vascular surgeon. He saw firsthand how some of the most highly trained people on the planet were spending their days on low-value administrative work. Heidi began by listening to real patient visits and drafting clinical notes. Today, it’s expanding into the vast — and invisible — work around care: follow-ups, calls, scheduling, and coordination. In this conversation, we explore: What “doubling capacity” in healthcare really means Why personalization must be nearly perfect — measured almost like a clinical SLA What it takes to build AI that doctors actually trust How GPT-4 didn’t kill Heidi’s moat — it forced a radical pivot And how Heidi rewrote the healthcare go-to-market playbook by winning clinicians one by one Everyone talks about AI’s potential. This episode is about delivering it — in the real world, where trust is fragile, stakes are high, and a 5% edit can break the magic.

Some products don’t just succeed — they shape culture. The Fender Telecaster and Stratocaster didn’t merely define new sounds; they became creative tools that generations of musicians built their identities around. Stewarding products with that kind of legacy requires a rare balance of respect for the past and clarity about the future. Few leaders understand that balance better than Justin Norvell, President of Americas at Fender. As the company continues to evolve, Justin helps guide one of the most influential names in music through changing expectations — where musicians want not just great instruments, but better ways to learn, create, and stay connected to their craft. In this episode of Building One, host Tomer Cohen sits down with Justin Norvell to explore how iconic products endure, how product thinking applies far beyond software, and why deeply understanding your users is the throughline of great product leadership. Tomer and Justin discuss: What makes products like the Telecaster and Stratocaster timeless — and what must never change How Fender thinks about expanding the musician experience without diluting its core Applying modern product principles inside a craft-driven, legacy brand Lessons from leading teams where heritage and innovation must coexist Why trust, community, and authenticity are essential to building products that last This conversation is for builders working inside established companies, leaders navigating transformation, and anyone interested in how enduring products are built — whether they live in code, hardware, or culture. Follow & learn more: Follow Tomer Cohen on LinkedIn and check out his newsletter, Building LinkedIn Follow Justin Norvell on LinkedIn

Breakout products rarely hinge on a single moment of luck. They’re shaped by countless decisions — what to prioritize, what to cut, and how deeply you understand the people you’re building for. Few builders have navigated those decisions at the scale of Mike Krieger, co-founder of Instagram and now Chief Product Officer at Anthropic. Instagram reshaped how billions communicate visually. Today, Mike is helping redefine how we interact with technology again — this time through one of the world’s leading AI assistants. At first glance, building a global social network and building Claude might seem worlds apart. In practice, the parallels run deep. In this episode of Building One, host Tomer Cohen talks with Mike about scaling, knowing when to pivot, and why the rise of AI is transforming the craft of product-building. Tomer and Mike discuss: The inflection point that turned Instagram into a global phenomenon — and the crisis that sparked it Why Mike decided to shut down Artifact, and the lesson he believes every founder should know about when to stop vs. persevere The surprising similarities between building Instagram and building Claude How working at Anthropic changed his thinking about product design and user interfaces And so much more This conversation is for anyone building products, leading teams, or shaping AI-powered experiences — and for every builder who believes that great products come from clarity, intuition, and the willingness to evolve. Follow ⁠Tomer Cohen⁠ on LinkedIn and check out his newsletter, ⁠Building LinkedIn⁠. Follow Mike Krieger on Linkedin.

When product teams talk about “a single source of truth,” they’re usually describing an aspiration — a kind of digital nirvana where everyone works from the same context. In engineering, that problem was solved years ago. In design, it took a fundamental mindset shift. Few people understand that shift better than Yuhki Yamashita, Chief Product Officer at Figma. When Figma launched in 2012, the idea of multiple people editing the same file, watching every keystroke in real time, felt radical. Today, Figma is used by more than 95% of the Fortune 500, powering collaboration across designers, engineers, and product teams worldwide. In this episode of Building One, host Tomer Cohen talks with Yuhki about what it takes to build products for builders and what he’s learned from his product roles at Microsoft, Google, and Uber. Tomer and Yuhki discuss: Why designing for product teams is uniquely powerful and uniquely challenging What Yuhki learned from Microsoft, Google, and Uber, and how each shaped his product philosophy How to design tools for non-designers without diluting power or precision The rise of “vibe coding” and its parallels in design Why Figma’s multiplayer model was a means, not an end How AI can evolve from a personal assistant into a true multiplayer teammate Why storytelling is one of the most underrated product skills This conversation is for anyone building products, leading teams, or shaping tools, and for every builder who believes clarity and collaboration are the real drivers of great work. Follow Yuhki Yamashita on LinkedIn. Follow Tomer Cohen on LinkedIn and check out his newsletter, Building LinkedIn.

What do Airbnb, Stripe, and DoorDash have in common? They were built with support from renowned startup accelerator, Y Combinator. And Garry Tan knows exactly what made them work. In the season finale of Building One, Tomer Cohen sits down with Garry Tan, CEO of Y Combinator, to unpack what really makes a startup succeed, and why the startup journey is more about mindset, resilience, and ruthless honesty than having the “perfect” idea. Garry shares rare insights from his dual perspective: as a former founder who went through YC himself, and now as the leader of the world’s most iconic startup accelerator. He’s seen the full spectrum of startup journeys and in this candid conversation, he breaks down what sets the enduring ones apart. In this episode, Tomer and Garry cover: The difference between playing startup vs building one Why co-founders matter more than ideas, and how to find the right one How to avoid the startup “valley of despair” What YC looks for in early-stage founders and teams How to chase user truth instead of optics or false signals How to know when to persevere, when to pivot, and when to walk away Whether you're a first-time founder or a serial entrepreneur, this conversation is packed with startup wisdom you won’t hear anywhere else. Follow Garry Tan on LinkedIn. Follow Tomer Cohen on LinkedIn and check out his newsletter, Building LinkedIn.