If AI is making everything, why do people keep talking about planning?

AI coding now lets teams build apps and MVPs in half a day to a day, sharply lowering development and validation costs.

Compared with plan-first workflows, making something real, testing it, and learning from feedback has become more effective—the economics of speed.

Fast iteration can reduce decision and collaboration bottlenecks, but mindless overproduction can create waste instead.

The key advantage is no longer just building quickly, but knowing what to build and why, with clear direction behind every experiment.