Punch cards are just text editors in primitive form though, ie columns across and lines down. All very 2D. A visual programming canvas is free of that, and thu

Punch cards are just text editors in primitive form though, ie columns across and lines down. All very 2D. A visual programming canvas is free of that, and thus can display connections and relationships far more deeply and conveniently than text-based languages. It's the 2D nature of our languages that has a lot to answer for.