

Lightcone Podcast
Y Combinator
Techno optimism for technical founders
Episodes
Mentioned books

98 snips
Dec 3, 2025 • 44min
What Founders Have To Unlearn To Become Great CEOs
Spenser Skates, CEO and co-founder of Amplitude, shares his journey from startup to public company. He discusses overcoming initial skepticism toward AI, which later became essential for the company’s growth. Spenser reveals how leadership shifts and strategic hires, including AI experts, revitalized the organization. He emphasizes the need for a technology-first mindset in AI development and contrasts traditional SaaS with AI-focused experimentation. Additionally, he highlights the importance of mentorship and a clear mission as key drivers for a founder's transition to an executive role.

200 snips
Nov 14, 2025 • 34min
AI Is Eating Logistics
Ryan Petersen, Founder and CEO of Flexport, dives into how AI is revolutionizing logistics, a trillion-dollar industry. He highlights how AI optimizes shipping costs and speeds up trade, sharing insights on using LLMs to enhance workflows. Petersen discusses the innovative hackathons at Flexport that spark new AI projects and reveals a program training non-engineers in low-code AI skills. Additionally, he explains the potential for AI to lower freight costs significantly and improve customer engagement, while pondering the societal implications of automation.

201 snips
Oct 30, 2025 • 22min
Inside The MIT AI Study Everyone Misunderstood (And What It Means For Startups)
The MIT report went viral, claiming 95% of enterprise AI projects fail, but the team uncovers the real issue: big companies struggle to implement AI effectively. They delve into why skepticism among engineers stalls progress and how startups rise to the occasion by integrating seamlessly into business processes. The discussion highlights the importance of product-minded engineers and the human element in successful AI tools. With major opportunities arising from enterprise inertia, it's a prime time for startups to thrive. Tune in for insights into the evolving AI landscape!

222 snips
Oct 17, 2025 • 38min
Unpopular Ideas That Became Billion-Dollar Businesses
Explore the world of contrarian bets where unconventional ideas thrive. Discover how founders like those behind Uber and DoorDash identified opportunities where others saw risks. Learn about the significance of unique insights in a crowded market and how outdated laws can create new avenues. Dive into discussions on the balance between full-stack solutions and point products, and hear about the transformative power of AI in simplifying complex processes. This conversation champions the belief that visionaries can turn skepticism into success.

647 snips
Oct 3, 2025 • 45min
The 7 Most Powerful Moats For AI Startups
Explore the pivotal role of moats in AI startups as hosts dive into Hamilton Helmer’s Seven Powers framework. They debate whether these businesses can overcome the challenge of being mere ChatGPT derivatives. Real-world examples illustrate how process power and cornered resources create barriers to entry. Discover how switching costs, counter positioning, and network effects drive defensibility. The conversation wraps up with a reminder that speed is a foundational moat, emphasizing the importance of solving real problems quickly.

344 snips
Sep 12, 2025 • 51min
The FDE Playbook for AI Startups with Bob McGrew
Bob McGrew, an early engineer at PayPal and Chief Research Officer at OpenAI, shares insights on the pivotal role of Forward Deployed Engineers (FDEs) in AI startups. He explains how these engineers bridge the gap between advanced AI capabilities and real-world adoption. McGrew discusses customizing solutions and the importance of understanding customer needs. He also reflects on the transformative potential of AI in military strategy. Fast-paced innovation, collaborative dynamics, and continuous learning are highlighted as keys to thriving in this evolving landscape.

523 snips
Aug 21, 2025 • 36min
Anthropic Co-founder: Building Claude Code, Lessons From GPT-3 & LLM System Design
Tom Brown, co-founder of Anthropic and key figure behind GPT-3, shares his journey from self-taught engineer to AI innovator. He unpacks the challenges of launching Anthropic during a pandemic while competing with giants like OpenAI. Tom discusses the groundbreaking scaling laws that transformed AI capabilities and delves into the evolution of coding in AI models, highlighting successes like Replit. He also offers invaluable advice for aspiring engineers, emphasizing the importance of mission-driven work in the fast-evolving AI landscape.

491 snips
Jul 8, 2025 • 39min
How to Spend Your 20s in the AI Era
The conversation dives into how AI is reshaping programming careers, with new grads facing daunting unemployment rates. Education shifts to emphasize real skills over mere credentials as outdated methods come under fire. AI is empowering aspiring entrepreneurs, enabling them to capture market needs with innovative solutions. The importance of agency and authenticity in entrepreneurship is highlighted, pushing young professionals to carve their own paths and focus on genuine value. Plus, a debate on choosing between college and exciting startup opportunities adds an intriguing layer.

375 snips
Jun 18, 2025 • 1h 1min
Alexandr Wang: Building Scale AI, Transforming Work with Agents & Competing With China
Alexandr Wang, the Founder and CEO of Scale AI, shares his journey from MIT dropout to leading a powerhouse in data infrastructure. He discusses Scale AI's evolution into a crucial player in AI model training, underscored by a recent $14 billion investment from Meta. Wang delves into the intense competition with China in AI advancements, the importance of human oversight in automation, and the transformative potential of AI in scientific research, particularly in healthcare. His insights on company culture emphasize the value of genuine care and commitment in driving success.

817 snips
May 30, 2025 • 31min
State-Of-The-Art Prompting For AI Agents
Discover the evolution of prompting in AI and its critical role in enhancing interactions with large language models. The hosts share firsthand experiences on mastering prompt engineering, including techniques to design effective prompts. Uncover the importance of evaluations and user engagement for AI startups. Explore innovative strategies from successful founders and the unique personalities of AI models that shape outcomes. Real-life examples highlight both the successes and failures in creating reliable AI outputs.


