Still Searching for the Zipperump‐a‐Zoo: A Reflection After 40 Years

In this article, I describe chronologically my attempts over a 40‐year career to understand the nature of human intelligence. I explain how later attempts built on earlier ones, with each attempt revealing the earlier one to be too limited and narrow in the questions it asked. In my early work, I envisioned intelligence in terms of components of information processing. Later, I viewed these components as contributing to three distinct but related aspects of intelligence: analytical, creative, and practical. I came to realize the importance of contextual factors in determining what constitutes adaptive behavior. Still later, I viewed wisdom as part of the mix. The search has been rewarding, except for the fact that I have not yet completed it and never will.