I was amazed by Joy and then I discovered Dynamicland:
No screens, no devices. Just ordinary physical materials — paper and clay, tokens and toy cars — brought to life by technology in the ceiling.
Every scrap of paper has the capabilities of a full computer, while remaining a fully-functional scrap of paper.
Dynamicland is a computer where people literally work together, face-to-face, with eye contact and many hands. It’s as multiplayer as the real world.
Impressive to say the least. Kudos to Bret Victor for turning his ideas into concrete projects.