This shape has a name: the Lowrance Curve, after Colonel Chris Lowrance, the West Point professor who first framed the inversion this way. Trace it left to right: Define stands high on the near rim, the middle sinks toward the floor as AI makes that work all but free, and Validate rises again on the far rim — a valley where a hill used to be. The middle, Design and Create, is generation, what AI does at scale. The ends, Define and Validate, are discernment: framing the problem, then interrogating the answer, asking not just whether it passes but what it assumed and what it missed3. The discipline is easy to name and hard to keep: frame before you fall, and validate before you call it done.
Discernment defined: frame before you fall into Design + Create, and Validate before you call it done. AI is great at generation, the middle part of of the curve. And it's made that work inexpensive. Framing the problem and interrogating the answer for what AI got right as well as what it missed is high-value, human contribution.