Doors of Perception 8, in Delhi, India, is looking like a real WorldChanging event. Just take a look at the announced speakers: nearly every one could be the subject of a WorldChanging story (and some already have). The panels include Joi Ito, Natalie Jeremijenko, Wikipedia founder Jimmy Wales... as well as our own Cameron Sinclair and Alex Steffen. Doors of Perception -- "a conference and website at the forefront of new thinking on design and innovation" -- takes place March 21-26, so if you're not local, buy your plane tickets now.