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David Senra

David Senra

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 Conversations with the greatest living founders.© 2025 Senra Show LLC Economics
Episodes
  • David Baszucki, Roblox

    David Baszucki, Roblox
    Apr 26 2026
    David Baszucki is the co-founder and CEO of Roblox, the platform where tens of millions of people gather daily to play, build, and socialize inside user-generated virtual worlds. Baszucki grew up in Eden Prairie, Minnesota, studied electrical engineering at Stanford, and in the late 1980s co-founded Knowledge Revolution with his brother Greg. There they built Interactive Physics, a 2D simulation that let students run physics experiments on screen — it sold millions of copies. MSC Software acquired the company in December 1998 for $20 million. After a few years running a division there, Baszucki left, hosted a libertarian talk radio show, drove across the West in a motorhome with his family, and eventually returned to a one-room office in Menlo Park with his old Knowledge Revolution engineer Erik Cassel. They began writing simulation code. The prototype was called DynaBlocks. It became Roblox. The platform launched in 2006, targeting kids and teenagers not just with games but with a canvas for building them. Growth was slow for years — then the pandemic made Roblox essential. In March 2021, the company listed directly on the New York Stock Exchange at a valuation of more than $41 billion. Cassel, who had died of cancer in 2013, did not live to see it. Baszucki has always framed Roblox as something bigger than a gaming platform — a place for human co-experience where creators, many of them teenagers, build the content and share in the economics. He has pledged all additional CEO compensation to philanthropy, directing tens of millions toward bipolar disorder research — a cause tied to his own family's experience with the illness. Made possible by Ramp: ⁠https://ramp.com⁠ Axon by AppLovin: https://axon.ai/senra Deel: https://deel.com/senra HubSpot: https://hubspot.com Chapters (00:00:00) Roblox Origin Story (00:01:14) Sabbatical and Intuition (00:03:36) Founder vs CEO Mindset (00:05:43) Building the Clock (00:07:57) Lifestyle Startup Phase (00:08:49) First Product Failure (00:15:48) Buying First Users (00:17:43) Studio Goes Live (00:18:53) Roblox vs YouTube (00:21:59) Beyond Games Vision (00:25:50) Roblox Operating System (00:33:55) Nine Companies Inside (00:36:19) Safety and Monetization (00:41:13) Robux Economy Loop (00:45:19) Creator to Entrepreneur (00:45:49) Chasing Photoreal Concurrency (00:49:11) Imaginary Competitor Mindset (00:50:08) Capital Efficiency Playbook (00:52:11) Performance As Growth (00:55:40) Owning The Stack (00:58:36) Roblox Infrastructure Engine (01:02:32) Safety And AI Moat (01:06:57) Data Ethics And NPC Testing (01:11:31) Creator Earnings Explosion (01:16:08) Marketplace And Transparency (01:20:01) Near Death Lessons (01:24:43) Ads And Creator Discovery (01:25:35) Closing Reflections Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 hr and 28 mins
  • Evan Spiegel, Snap

    Evan Spiegel, Snap
    Apr 12 2026
    Evan Spiegel is the co-founder and CEO of Snap Inc., the company behind Snapchat. At Stanford, he enrolled in the product design program. In 2011, in a class project, he and two classmates — Reggie Brown and Bobby Murphy — sketched out the idea for an app where photos disappeared. The insight was counterintuitive: in an era when everyone was obsessed with permanence and curation online, ephemerality might be the point. They built it. Spiegel dropped out before graduation to run it full time. What followed was one of the most turbulent ascents in Silicon Valley history. Facebook tried to buy Snapchat in 2013 for $3 billion in cash. Spiegel, 23 years old, said no. The decision was mocked at the time and later vindicated. Snap went public in March 2017 at a $24 billion valuation, making Spiegel — still in his mid-twenties — one of the youngest self-made billionaires in history. Spiegel has always argued that Snap is a camera company — that the camera is the starting point for how the next generation communicates, not a feature, but the interface itself. Snapchat pioneered Stories, a format that Instagram, Facebook, WhatsApp, and YouTube all copied within years. It pioneered augmented reality filters at consumer scale. It built a maps product that shows where your friends are in real time. Every one of those ideas was imitated. Now he's making his biggest bet yet. Snap's sixth-generation Spectacles are AR glasses — a genuine attempt to build the successor to the smartphone. They overlay digital information onto the real world in real time. Spiegel believes the camera on your face will eventually replace the screen in your pocket. He and his wife Miranda Kerr run the Spiegel Family Fund, focused on arts, education, and human rights. In 2022 alone, he gave $20 million to a scholarship program in Stockton and wiped out the student debt of an entire graduating class at Otis College of Art and Design. Show notes: https://www.davidsenra.com/episode/evan-spiegel Made possible by Ramp: ⁠https://ramp.com⁠ Deel: https://deel.com/senra Axon by AppLovin: https://axon.ai/senra HubSpot: https://hubspot.com Chapters (00:00:00) Edwin Land Influence (00:02:01) Art Science Upbringing (00:03:27) Computers And Connection (00:05:50) Smartphone Addiction Lens (00:09:30) Building For Humanity (00:13:15) From Internships To Snapchat (00:17:02) Snapchat vs. Social Media (00:18:38) Stories And Vertical Video (00:22:22) Uncompromising Kind Culture (00:28:34) Snap Leadership And Design (00:37:38) AI Supercharges Snap (00:41:57) No Moat In Software (00:42:31) Beating the Clone (00:43:50) Messaging Network Effects (00:44:58) Camera Out of Pocket (00:45:49) Specs Market Reality (00:48:28) AR Platform Explosion (00:52:14) Vision-Led Product Design (00:54:09) Why Not Luxottica (00:59:11) Owning the Stack (01:03:02) Snap the Middle Child (01:08:04) Crisis Without Burnout (01:10:02) Snapchat Plus Growth (01:12:54) Rebuilding the Ad Engine (01:19:03) Subscriptions Over Ads (01:21:14) Fighting Giants With AI (01:22:04) Why Hardware Stands Alone (01:25:29) Snap Lab Origins (01:25:59) New Apps Beyond Snapchat (01:28:29) Focus And Founder Drive (01:32:14) Surfacing Problems Fast (01:36:08) Flat Culture Meritocracy (01:39:36) Last Company And Giving Back (01:41:15) Turning Down Billions (01:48:51) Snapchat Funds New Computing (01:51:24) Crucible Year And Schedule (01:53:56) Stress Reframed Meditation (01:56:09) Explainer In Chief (01:57:07) Closing Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 hr and 58 mins
  • Tony Xu, DoorDash

    Tony Xu, DoorDash
    Mar 29 2026
    Tony Xu is the co-founder and CEO of DoorDash, the largest food delivery platform in the United States. Before he was a tech executive, he was a dishwasher. Xu was born in Nanjing, China, and immigrated to the U.S. at age four with parents who arrived with $200 in the bank. His mother had been a licensed doctor in China. In America, she waited tables at a Chinese restaurant in Illinois. Xu worked beside her, washing dishes. That experience became the animating idea behind everything he built. At Stanford, he and three classmates noticed that restaurants in Palo Alto had no good way to handle delivery. They built a basic website, called restaurants, and started driving orders themselves — skipping class to fulfill them. That crude experiment became DoorDash. They went through Y Combinator in 2013 with $120,000 in seed funding and a product that barely existed. What followed was a decade of improbable dominance. DoorDash entered a market that Grubhub had largely defined, absorbed punishing losses to win share city by city, and eventually surpassed every rival in the U.S. In December 2020, the company went public on the NYSE at a $32 billion valuation, making Xu a billionaire at 36. In 2022, DoorDash acquired the Finnish delivery platform Wolt for $8.1 billion, expanding the business from four countries to more than two dozen overnight. Xu has always insisted DoorDash is a logistics company, not a food app — a platform for local commerce that starts with restaurants but doesn't end there. Show notes: https://www.davidsenra.com/episode/tony-xu Made possible by Ramp: ⁠https://ramp.com Deel: https://deel.com/senra Axon by AppLovin: https://axon.ai/senra Chapters (00:00:00) DoorDash MVP in 43 Minutes (00:01:39) How Delivery Worked in 2013 (00:03:17) Small Business Roots and Insight (00:05:48) Why Restaurants First (00:08:24) Palo Alto vs San Francisco (00:11:03) Early Customers and Unit Economics (00:15:22) YC Summer Three Questions (00:19:50) The Hidden Complexity of Delivery (00:22:02) Competing on Invisible Details (00:23:54) Chaos Data and Experiment Loops (00:30:58) Trust Reset Every Day (00:31:30) Stanford Game Meltdown and Refunds (00:34:41) Scaling Through Experiments (00:37:37) Customer North Star Metrics (00:40:10) CEO Customer Support Habit (00:42:55) Anecdotes Versus Data (00:46:52) Eternal Mission Local Economies (00:50:09) Turning Data Into Merchant Growth (00:59:12) New Products Beyond Delivery (01:01:14) Autonomous Delivery Strategy (01:05:06) Hiring Rhodes Scholar Navy SEALs (01:12:46) Driver Switch Experiment (01:13:42) Who Delivers and Why (01:15:33) Hiring for Action (01:18:07) Earned Secrets via Experiments (01:20:01) Money vs Problem Solving (01:21:18) Thousand Days of Hell (01:26:04) Staying Sane as CEO (01:30:07) Ignore the Stock Price (01:31:44) Two Operating Systems (01:35:17) Internal Venture Stage Gates (01:38:17) Learning from Founder Peers (01:42:29) Jiu Jitsu Lessons (01:44:37) AI Changes the Loop (01:47:01) Data Needs Action (01:48:24) Closing Thoughts Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 hr and 49 mins
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