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In a CS153 Frontier Systems lecture, the class shifts from upstream bottlenecks like power and compute to the capital and company-formation layer, framing YC's 2010s introduction of the SAFE as a standardization moment for venture capital comparable to the buildout of the electrical grid.
Guests Garry Tan, CEO of Y Combinator, and General Partner Diana Hu argue that agentic coding, unlocked by Claude 4.5 in late 2025, has collapsed the unit of production: Tan recounts rebuilding his old startup Posterous in five days on a $200 Claude Max plan and shipping his open-source GStack and GBrain projects to over 100,000 GitHub stars. They walk through agentic primitives — skills, resolvers, Skillify, evals, and a three-layer memory system — and map them onto company structure, with skills as employees, resolvers as the org chart, and CheckResolvable as audit and compliance. Hu closes by arguing AI-native companies run as closed-loop systems with one or two million dollars in revenue per employee, citing YC portfolio companies Salient, Happy Robot, and Reducto as forward-deployed examples and pointing to white space across back office, finance, and customer service for one-person frontier companies.
Garry Tan is president and CEO of Y Combinator and a General Partner. He was a partner at Y Combinator from 2011 to 2015, where he built key parts of the YC experience for founders including Bookface and the Demo Day website. Garry is the co-founder of Initialized Capital and Posterous (YC S08), a blog platform acquired by Twitter, and prior to that, he was an early designer and engineering manager at Palantir (NYSE:PLTR), where he designed the company logo. Garry holds a BS in Computer Systems Engineering from Stanford.
Diana Hu is a General Partner at YC. She was co-founder and CTO of Escher Reality (YC S17), an Augmented Reality Backend company that was acquired by Niantic (makers of Pokémon Go). At Niantic, she was the head of the AR platform. Previously, she led data science at OnCue TV that was sold to Verizon. Originally from Chile, Diana graduated from Carnegie Mellon University with a BS and MS in Electrical and Computer Engineering with a focus in computer vision and machine learning.
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