“What Ibarra calls the “ plan-and-implement” model—the idea that we should first make a long-term plan and execute without deviation, as opposed to the “ test-and-learn” model—is entrenched in depictions of geniuses. Popular lore holds that the sculptor Michelangelo would see a full figure in a block of marble before he ever touched it, and simply chip away the excess stone to free the figure inside. It is an exquisitely beautiful image.”