Faster implementation becomes useful when a product idea is specific enough to test. In this startup-school talk, the speaker proposes a concrete test: could an engineer build the idea from the description, or would different engineers build entirely different products?
The talk contrasts a broad ambition to improve healthcare resource use with a defined tool for booking scanner appointments. The narrower description makes implementation and customer feedback possible. The argument is that speed helps founders discover whether a particular product works, provided they first make a decision about what that product actually does.