Descriptions:
Ben Horowitz, co-founder of Andreessen Horowitz (a16z), sits down for a wide-ranging conversation on how AI is fundamentally rewriting the rules of software company-building. He opens by dismantling two axioms that have governed the software industry for decades: that you cannot throw money at software problems (the mythical man-month), and that customer lock-in is durable. Both are now substantially weakened, he argues — code is easily replicated, data is easily migrated, and AI agents are indifferent to user interface conventions, so traditional switching-cost moats are eroding fast.
A significant portion of the conversation focuses on infrastructure constraints. Horowitz describes the current moment as one where nearly everything is simultaneously a bottleneck — electricity, rare earth minerals, manufacturing capacity, RAM, and power transformers. He notes that Dell is shipping servers without RAM because AI workloads have absorbed global supply, and that the US is effectively out of available electricity capacity right now, not in twelve months. A16z has directly invested in a power transformer company as a bet on electricity infrastructure being the critical near-term constraint. He draws a detailed comparison to the 1999 fiber buildout while highlighting a key difference: unlike dark fiber that sat unused, today’s GPU capacity is fully utilized, and bottlenecks are distributed across multiple supply chain layers simultaneously.
The discussion also covers what CEOs of pre-AI software companies should do — including recognizing that product windows may compress from years to weeks — and why companies are staying private longer as public markets reprice terminal values downward for SaaS businesses facing AI disruption.
📺 Source: a16z · Published April 14, 2026
🏷️ Format: Interview
