Latest Interviews

Amy Chua: Political Tribalism and American Foreign Policy

Amy Chua, Rob Mass

Yale Law professor Amy Chua analyzes global and domestic group dynamics through her concept of the "supergroup," contrasting the United States' unique ability to balance national unity with subgroup flourishing against the assimilationist models of France and China. She attributes rising U.S. political polarization to demographic shifts that have created defensive tribalism between coastal elites and the white majority, a division she attributes to a rhetorical shift from universalism to identity politics. Chua concludes by proposing practical remedies such as a national service "gap year" to foster intergroup interaction and arguing that allowing controversial speech prevents extremism from festering in epistemological silos.

Sterling Anderson, Co-Founder, Aurora - MIT Self-Driving Cars

Sterling Anderson, Lex, Wayne Nikola, Luke, Kasha

Aurora, founded by former Tesla Autopilot head Sterling Anderson, has partnered with Volkswagen and Hyundai to deploy a software-centric autonomous platform leveraging deep learning and multi-modal sensors. The company addresses critical forecasting challenges by testing systems that reduced collision rates by 72% while increasing operational speeds in prior research, aiming to exceed human safety standards before scaling. With a core team including ex-Google and ex-Uber experts, Aurora intends to integrate its technology into existing fleets and future vehicle interiors once statistical safety thresholds are met, while proactively planning for workforce transitions in the transportation sector.

Sam Altman - Startup Investor School Day 1

Sam Altman, Jeff

Discussions among top angel investors emphasize a power law strategy that targets 100x–1000x returns through "generation-defining" companies, requiring founders to demonstrate obsession, rapid learning, and high integrity over conventional valuation metrics. The event highlights that successful sourcing relies on founder networks and cold outreach rather than herd behavior, while investors must maintain pro-rata rights to avoid dilution in top-quartile follow-on rounds. Ultimately, long-term success depends on prioritizing founders with massive potential over existing market categories, providing deep support during crises to foster the rapid iteration necessary for billion-dollar exits.

Geoff Ralston's Intro - Startup Investor School Day 1

Geoff Ralston

Y Combinator launched its inaugural hybrid Startup Investor School, a four-day program in Mountain View and online that educates accredited and non-accredited investors on startup selection and deal mechanics. The curriculum, delivered by volunteer instructors from the startup ecosystem, concludes with virtual and in-person invitations to Winter 2018 Demo Days for select participants. Additionally, the initiative establishes a crowd-sourced knowledge repository and leverages historical case studies to refine investor decision-making capabilities.

Startup Investor School Day 1 Live Stream

Jeff, Sam Altman, Carolyn Levy, Kirstie

Y Combinator hosted a four-day course for accredited and non-accredited investors, featuring Sam Altman's analysis of the power law and founder evaluation alongside Carolyn Levy and Kirstie Nathoo's technical breakdown of the SAFE instrument. The curriculum emphasized that successful angel investing requires prioritizing massive upside potential over failure rates while navigating conversion mechanics, valuation caps, and pro-rata rights through tools like AngelCalc. Outcomes include a permanent open-source knowledge repository and a cohort of investors equipped to make independent, high-impact decisions on Y Combinator's Winter 2018 startups.

Stephen Wolfram: Computational Universe | MIT 6.S099: Artificial General Intelligence (AGI)

Stephen Wolfram

The presentation establishes that artificial general intelligence emerges not from mimicking biological brain architecture but by mining the computational universe for sophisticated programs constrained by computational irreducibility. It details how Wolfram Alpha and the Wolfram Language implement this theory by converting human intent into symbolic code to automate algorithmic discovery and manage complex knowledge domains without relying on simplified ethical axioms. Ultimately, the speaker advocates for a paradigm shift in education toward computational thinking, enabling humans to collaborate with systems that solve problems and generate proofs beyond intuitive human capacity.

Shriram Krishnamurthi: Curriculum Design as an Engineering Problem: Lessons from the Field

Shriram Krishnamurthi, Emmanuel Schanzer, Kathi Fisler, Laurie, Askle, James, Shetha, Eric Alata, Kathy, Dharan, Kenny, Yaron, Alice O'Neill, Papert

Bootstrap addresses critical equity and rigor gaps in computer science education by embedding computing concepts directly into mandatory Algebra, Data Science, and Physics curricula rather than relying on scarce specialized teachers or elective courses. This systems-engineering approach utilizes functional programming and a structured "Design Recipe" to scaffold mathematical thinking for all students, successfully mitigating the barriers of after-school programs and traditional silos. Facing scaling challenges due to limited administrative staff and bureaucratic resistance, the organization now prioritizes teacher professional development and is developing middle school modules like Bootstrap Junior to extend this integrated framework to earlier grades.

Echoes of Fourier

The event explains how complex numbers and the Discrete Fourier Transform decompose audio signals into frequency components to enable the $O(n \log n)$ Fast Fourier Transform algorithm. It further details how the Convolution Theorem applies these principles to efficiently model acoustic environments and audio effects like reverb through multiplication in the frequency domain. Finally, the presentation addresses the numerical challenges of reversing these processes via deconvolution for applications such as echo removal and digital room correction.

Nate Foster: Verifying Network Data Planes

Nate Foster, Bill Hallahan, JK Lee, Cole Schlesinger, Steffen Smolks, Robert Soule, Han Wang, Ron

Cornell Professor Nate Foster and Barefoot Networks have developed an automated verification tool for P4 programs running on programmable data planes to prevent catastrophic network failures caused by configuration errors. This system transforms P4 code into guarded commands to efficiently compute weakest preconditions using the Sacks and Flanagan algorithm, checking safety conditions against the Z3 SMT solver to generate counter-examples for invalid header accesses without requiring manual annotations. By modeling the separation between data and control planes through ghost state, the tool validates programs up to 20,000 lines of code in minutes, establishing a critical foundation for verifying complex software-defined network topologies.

Al Gore: Leading the Charge for Environmental Action

Al Gore, S Iswaran, Michael Klowden

A comprehensive analysis frames the climate crisis as a solvable sustainability revolution driven by AI, IoT expansion, and renewable economics that now outperform fossil fuels. Despite accelerating temperature anomalies, extreme weather events, and ecosystem collapse threatening global stability, the speaker highlights record-breaking decarbonization trends and a $22 trillion financial risk assessment that compels market-led action. Ultimately, the transition is portrayed as inevitable due to technological capability and investment momentum, even as political fluctuations and lagging mitigation efforts continue to exacerbate immediate atmospheric and humanitarian risks.

The Future of Software Development

Chris Granger

Driven by the limitations of legacy engineering in modern distributed ecosystems, the industry is reconverging with academic research to replace complex abstractions with mathematically simple foundations like CRDTs and immutable event logs. This paradigm shift is already transforming major technologies, including Facebook's React framework and Apple's Auto Layout, by prioritizing deterministic outcomes over manual state management. Ultimately, these innovations aim to democratize computation by stripping away systemic complexity to focus on solving user problems rather than managing infrastructure.

Building Your Board | Glenn Kelman

Glenn Kelman, Selina Tobaccowala, James Slavitt, Jeff Markowitz, Mark Singer, Emily Melton, Austin Ligon, Reed, Julie Bornstein, Bob Milad, Jason, Janie, Scott, Chris Roski

Redfin CEO Peter van de Ven transformed his company's governance by shifting board relations from adversarial to collaborative, implementing strict communication protocols and off-site retreats to foster honest dialogue and strategic alignment. To ensure operational efficiency, the firm recruited board members based on peer-scale experience and mission alignment rather than corporate prestige, resulting in employed agents who are three times more productive than industry standards. This deliberate restructuring of founder-board dynamics and executive accountability has enabled Redfin to maintain higher Net Promoter Scores while generating hundreds of millions in annual revenue.

Ben Huh on Therapy

Ben Huh, Ben Ha

Ben Ha, founder of Cheeseburger Network and Y Combinator special projects lead, advocates for proactive mental health support to maintain high-performance states rather than reacting to crises. Drawing on his own experience with coaches Jerry Colonna and Khalid Halim, Ha emphasizes a strategy grounded in radical honesty and the "so, so, so what?" mantra to strip away emotional reactivity and clarify core motivational drivers. He asserts that investing in regular therapy yields a significant return on investment for startup founders by optimizing decision-making capabilities and preventing costly burnout.

Later Stage Advice with Sam Altman (How to Start a Startup 2014: Lecture 20)

Sam Altman

This strategic framework outlines the critical operational shifts founders must execute between the 12th and 30th month as a company transitions from product validation to scaling beyond 25 employees. It mandates the implementation of simplified reporting structures, formalized compensation bands, and proactive financial planning to prevent management failures that commonly plague rapid growth. By adhering to these protocols, organizations can align leadership, preserve cultural values through documentation, and secure long-term viability against the psychological and legal challenges of scaling.

Heuristics and Biases

Sandor Lehoczky

Leveraging the foundational work of Daniel Kahneman and Amos Tversky, this presentation elucidates how human cognition relies on error-prone heuristics and the conflict between fast, intuitive System 1 thinking and slow, analytical System 2 reasoning. The discussion details empirical evidence of systemic biases such as loss aversion, anchoring, and confirmation bias, demonstrating their profound impact on diverse fields ranging from judicial parole decisions to financial market behavior. Rather than attempting to eliminate these innate flaws, the session advocates for strategic mitigation through meta-cognition, Bayesian updating, and the disciplined practice of overriding automatic responses to improve real-world decision-making outcomes.