Thanks for this wonderful essay! I love learning about that period in computing, when a lot of what we use today was first challenged. It's easy to see how thos

Thanks for this wonderful essay! I love learning about that period in computing, when a lot of what we use today was first challenged. It's easy to see how those same principles apply to the GRaIL visual programming interface demo[1], where different strokes create different types of elements (boxes, outputs, connections, ...). [1]: https://www.youtube.com/watch?v=QQhVQ1UG6aM https://www.youtube.com/watch?v=QQhVQ1UG6aM