The problem with visual programming is the same as those UML tools where you designed classes with boxes then filled in the code later. First of all it's quicke

The problem with visual programming is the same as those UML tools where you designed classes with boxes then filled in the code later. First of all it's quicker and easier to define with text than drawing. And second of all the detail is the important bit. You can't design the high level code in isolation and then fill in how it works. You need to build up the components from the details and see how the abstractions emerge. And that's not very visual/.