200 VCs wanted to get into Lumen Orbit (YC S24)'s seed round! Over the holidays, James Moffat and I had the pleasure of sitting down with Lumen's Co-Founder and CEO, Philip Johnston. Drawing on his experience as a former Harvard University class president, McKinsey & Company consultant, and entrepreneur with a successful exit, Philip is now turning his focus to the stars. His mission? To revolutionize computing with solar-powered, orbit-based data centers that could redefine energy efficiency and scalability for AI. Key Takeaways: 1. Be bold: The biggest opportunities often lie in “zero-billion dollar markets”—industries that barely exist today but have massive potential, like computing in space. These untapped frontiers, often adjacent to big markets, are where transformative breakthroughs and category-defining companies are born. 2. Falling Launch Costs Are a Game-Changer: Rockets like Starship will make getting mass into orbit 100x cheaper, unlocking opportunities like space-based data centers and other frontier innovations. 3. First-Principles Thinking Wins: LumenOrbit tackles challenges by reducing them to their core engineering problems—like designing lightweight, cost-effective radiators capable of dissipating heat in the vacuum of space, a fundamental hurdle for high-energy applications. 4. New Industries Offer Rapid Expertise: In emerging fields like AI and space tech, focused effort can make you an expert in months. Aspiring entrepreneurs and new grads should target fast-growing industries with room for newcomers.