Stuart Butterfield:

The best — maybe the only?— real, direct measure of “innovation” is change in human behaviour. In fact, it is useful to take this way of thinking as definitional: innovation is the sum of change across the whole system, not a thing which causes a change in how people behave. No small innovation ever caused a large shift in how people spend their time and no large one has ever failed to do so.

This is the best definition for an overused term I’ve heard in a while.

The whole piece is an enthralling call to arms to a group of people building a product.