Let me repeat a comment I made in response a similar comment above: he Dijkstra argument is that looking at examples, learning about concrete cases may prevent

Let me repeat a comment I made in response a similar comment above: he Dijkstra argument is that looking at examples, learning about concrete cases may prevent you from thinking about the most general abstract problem, for which you may devise an elegant solution. So according to the Dijkstra argument the prototypes you create may bias/prejudice your thinking, and should be avoided if you want to get to an elegant/optimal/general solution.