As I said, Kay has invented a lot. My comment was based on his general writings, not Smalltalk. However, I agree that it's possible to have an insightful unde

As I said, Kay has invented a lot. My comment was based on his general writings, not Smalltalk. However, I agree that it's possible to have an insightful understanding of the commercialization of ideas, and to have contributed greatly to one stage, without having done all stages oneself. In a way, Alan Kay + Steve Jobs complement one another. As an example, one might see the stages of commercialization of the desktop metaphor as: PARC-->Apple-->Microsoft. Note that here commercialization means making money by getting something into the hands of more people.