TED does funny things to your time perception. It seems to be going so fast - only two sessions left now - but at the same time it seems a lifetime ago that I did my TED-University talk on Tuesday. Today was fabulous; here's a brief run-through.Session 1 - Radical DevelopmentPaul Romer proposed that we need some good rules for changing rules because we get stuck with useless old rules too often, and suggested transforming Guantalamo Bay into a Charter City to be Cuba's Hong Kong; Marc Koska demonstrated his safe syringe (plunger breaks after one use); Michael Pritchard showed his brilliant Lifesaver bottle that cleans filthy water (Chris Anderson bravely acted as on-stage guinea pig) and allows people to live where water is; William Kamkwamba inspired us all with his pure dedication in building windmills from scrap to power and irrigate his family home; Rob Hopkins brilliantly showed how we can adapt to the end of the oil age through the wonderful Transition Network (who knew that Lewes had its own currency?); IDEO boss Tim Brown berated the 'design priesthoo