Inside the $13T Mortgage Machine

In this conversation from Lenny’s Podcast, Ben Horowitz joins Lenny to discuss the psychological muscle every founder needs, why hesitation can be fatal for CEOs, when it’s time to replace a founder, and how to normalize failure while building confidence. They also explore the Databricks founding story, investing in Adam Neumann after WeWork, whether AI is in a bubble, where the real opportunities lie, and Ben’s work with the Paid in Full Foundation supporting hip-hop pioneers. The result is a candid look at leadership, product management, and what it takes to build enduring companies.

Why do some consumer products explode into networks that reshape the internet, while others fade away? Today on the podcast, a16z general partners Anish Acharya and Chris Dixon take on that question. Anish invests in AI-native consumer products and the next wave of consumer tech. Chris is best known for his work in Web3 and network economies, and he’s also led some of a16z’s biggest consumer bets. Together, they cover the history and power of consumer networks, the exponential forces that shape how they grow, and what it all means for founders building in the age of AI.

What happens when AI collides with salesmanship, streaming-era sports, and healthcare? In this episode, Erik Torenberg is joined by Mark Cuban, entrepreneur, Dallas Mavericks co-owner, and founder of Cost Plus Drugs. Topics include fiery group chats and how dissent sharpens thinking, the sales playbook of modern politics, and concrete fixes for U.S. healthcare like ending PBM opacity, publishing real prices, and government-backed patient financing. Mark also explains how AI is pushing media from “social” to algorithmic, why he expects millions of models, and why ESOPs are an underrated wealth engine. He shares what he’d build today and weighs in on NBA economics under the new collective bargaining agreement.

Who’s speaking up for startups in Washington, D.C.? In this episode, Matt Perault (Head of AI Policy, a16z) and Collin McCune (Head of Government Affairs, a16z) unpack the “Little Tech Agenda” for AI- why AI rules should regulate harmful use, not model development; how to keep open source open; the roles of the federal government vs states in regulating AI; and how the U.S. can compete globally without shutting out new founders.

Stainless founder Alex Rattray joins a16z partner Jennifer Li to talk about the future of APIs, SDKs, and the rise of MCP (Model Context Protocol). Drawing on his experience at Stripe—where he helped redesign API docs and built code-generation systems—Alex explains why the SDK is the API for most developers, and why high-quality, idiomatic libraries are essential not just for humans, but now for AI agents as well.