Market sizing breaks with supply breakthroughs

a16z cofounders Marc Andreessen and Ben Horowitz join a16z general partner Erik Torenberg and Not Boring founder Packy McCormick for a conversation on how the media and information ecosystem has changed over the past decade. The discussion breaks down the shift toward a more open and decentralized speech environment, the rise of writer- and creator-led platforms like Substack, and the erosion of centralized media gatekeepers. Marc and Ben also tie these dynamics to their investing worldview, outlining how supply-driven markets, major technological step changes, and reputation-driven venture platforms shape outcomes in the AI era.

Timecodes:

00:00  Introduction
00:46  How the media ecosystem is changing
4:20  Why a16z invested in Substack
6:28  Supply-driven markets and new content creation
8:07  Why writers felt trapped by media companies
10:09  Databricks and the 10x cloud multiplier
13:58  Long-form podcasting proves demand
15:40  What the new fund signals about the future
16:24  AI as a universal problem solver
18:49  Why market sizing is broken
20:45  Go-to-market, policy, and platform power
22:37  Turning inventors into confident CEOs
25:58  Borrowing power to scale faster
27:29  Building dreamers, not killing dreams
30:46  Reputation as a core competitive advantage
35:57  Taking arrows in public
38:56  Avoiding big company failure modes
40:39  Autonomous teams inside a16z
41:54  Venture capital as the last job
46:01  Why intangibles matter more than ever
48:17  Original thinkers with charisma
50:06  Why Zoomers are different

Resources: 

Follow Marc Andreessen on X: https://twitter.com/pmarca

Follow Ben Horowitz on X: https://twitter.com/bhorowitz

Follow Erik Torenberg on X: https://twitter.com/eriktorenberg

Follow Packy McCormick on X: https://twitter.com/packyM

Read Packy’s piece: https://www.notboring.co/p/a16z-the-power-brokers

Read David Haber’s piece ‘Firm > Fund’: https://www.a16z.news/p/firm-fund

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