The amount of time a company can count on holding on to market leadership to exploit its earlier innovations is shrinking, and this creates an imperative for even the most entrenched companies to invest in innovation.

customer archetype,

Instead, we need to focus our energies on minimizing the total time through this feedback loop.

products—disruptive innovation—

lazy registration is considered one of the design best practices for online services. In this system, customers do not have to register for the service up front. Instead, they immediately begin using the service and are asked to register only after they have had a chance to experience the service’s benefit.

Thus, validated learning is backed up by empirical data collected from real customers.

By focusing on functional efficiency, we lose sight of the real goal of innovation: to learn that which is currently unknown.

even more engaging to them.

In traditional management, a manager who promises to deliver something and fails to do so is in trouble. There are only two possible explanations: a failure of execution or a failure to plan appropriately. Both are equally inexcusable. Entrepreneurial managers face a difficult problem: because the plans and projections we make are full of uncertain