I've done a lot of research into other VPLs as well, and in theory, all of these ideas are sound. Unfortunately, it seems like VPLs only work well for well-def

I've done a lot of research into other VPLs as well, and in theory, all of these ideas are sound. Unfortunately, it seems like VPLs only work well for well-defined domains (say, a VPL for shaders, a VPL for compositing, a VPL for EE, a VPL for business logic) Once you try to go general, and add "zooming in" and "zooming out" mappings, the number of ways that people would prefer to visualize each becomes exponentially more complex to display/interact with; so much so that then simply using text seems like a general-enough solution. I'm still hopeful that a general purpose VPL could exist and work for 'real' programs, but so far my search has come up empty. A good reference list to look at for existing VPLs: http://blog.interfacevision.com/design/design-visual-progarmming-languages-snapshots/ http://blog.interfacevision.com/design/design-visual-progarm...