In "The Terminal Man" by Michael Crichton, the protagonist realizes that one can effectively utilize technology like computers without grasping their underlying mechanics. This observation parallels everyday experiences, such as driving a car, operating a vacuum cleaner, or even using one's brain, which all function within a complex system beyond immediate comprehension.

This insight highlights a broader theme in the book regarding the relationship between humans and technology. It raises questions about reliance on technology without understanding it, reflecting on how society engages with complex tools and systems in daily life.