Yes, you're (partially) correct...I overlooked that point. However, Dyson actually emphasized getting the best way to solve a problem, even if it takes longer.

Yes, you're (partially) correct...I overlooked that point. However, Dyson actually emphasized getting the best way to solve a problem, even if it takes longer. Sketching, prototyping, and testing allows you to get to the best solution instead of the first solution. Dyson's point about Frank Whittle was that he can get to the best solution on fewer iterations than most...something highly desirable in any organization.