Good ideas don't come from thoughts or visions. Instead, they come from stuff.

Every great idea is a combination or mutation of an idea that has already been brought to life. Ideas brought to life in products that are already out there are the building blocks of innovation – not thoughts....

• Every idea is a combination of other ideas. Innovation happens when ideas have sex. It occurs where people meet and exchange goods, services and thoughts. The inventors of motor cars did not have to invent wheels or steel. 
• Most inventors find that they need to keep ...

Ideas should not be a product of pure subjectivism, but must always touch base with the facts in the objective world from which the ideas were born. (e.g., the idea of a "cat" should refer to an actual cat.)

This is much harder to do with more complex ideas, such as capita...