What you imagined sounds vaguely like dynamicland from Bret Victor. https://dynamicland.org/ https://dynamicland.org/ The dots around the paper are encoded pr

What you imagined sounds vaguely like dynamicland from Bret Victor. https://dynamicland.org/ https://dynamicland.org/ The dots around the paper are encoded programs, and you can use other shapes, objects, or sigils that communicate with the computer vision system.