Marc Andreessen

Foreword

By Edo Segal ^ Opus

There are moments when the ground shifts, and you have to decide whether to run for solid earth or learn to build on the new terrain.

The AI revolution is one of those moments. I've been standing in it since the winter of 2025, when Claude Code crossed the threshold and twenty-fold productivity gains became real. I've felt the vertigo. The exhilaration and the terror, often in the same hour. I know what it's like to build something in thirty days that should have taken six months, to watch the imagination-to-artifact ratio collapse before your eyes.

But I'm a builder, not a philosopher. I see the transformation through the lens of products shipped and teams reorganized. Marc Andreessen sees it through different eyes entirely. He sees patterns across decades, frameworks that connect