At the core of Alan Kay's mission to re-imagine the computing experience was a concept he learned from Seymour Papert who was a pioneer in exploring, what he called, the "human-computer symbiosis" - a term coined by J. C. R. Licklider
Symbiosis: >interaction between two different organisms living in close physical association, typically to the advantage of both.
That is, that the computer could be something more than an tool for analysis. It could be a tool for learning - through a discover process between humans and computers.
What Kay, with his Learning Research Group at PARC discovered as the wrote programs for the Alto, was that the computer could become a powerful means to unleash human creativity. Very quickly, they discovered that the Alto could do much more than be a business tool, which was the original mandate, but be something that could be used for artistic expression that could utilized by many people.
This concept was revolutionary and laid the foundation for our creative economy.