Whoa, pictures! A visual history of visual programming languages!
summary
Claims that visuals change how people think are inspected against concrete systems: Sketchpad (1963), flowchart tools like GRAIL, Scratch (2002), dataflow Prograph, and oddities like Cube. The talk names real problems—abstraction, diff/merge, limited shape memory—and real fixes, e.g. AgentSheets nesting and Prograph’s minified methods, showing what actually worked and what didn’t. It points to production wins like Twilio Studio and a playful built extension GitHub selfies, so visual VPLs excel for occasional, educational, IoT, and creative workflows.
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