New Alan Kay talk — . It's a tour of classic works — Sketchpad, GRAIL, Mother of all Demos, formation of PARC, Dynabook, Smalltalk, Negroponte's work on spatial UIs, Etoys, etc. — with light commentary and context. Includes a video clip of GRAIL that I hadn't seen before. It's a node-wire (esq) programming system that visualizes execution by flashing the nodes, and it gives you control over the rate of execution. Wild.