Suppose someone is born blind, and they are taught to distinguish a sphere and a cube by touch. Then, suppose this person’s sight is restored, and they are shown a sphere and a cube. Could the person, using sight alone, distinguish the sphere from the cube? That is Molyneux’s Problem.

Utopia. Not Fruitopia. BF Skinner imagined a Utopian community called “Walden 2,” where people are raised in carefully controlled environments. Walden 2’s Planners and Managers would use “behavioural engineering” to eliminate human flaws like greed and violence, allowing human nature to flourish. We discuss his brilliant but flawed Utopian project.