Comment by oomkiller

Sorry if it seems outlandish, I'm not really sure how quantify "complex". One personal example though is I designed a national emergency management network (Utilizing XMPP/PubSub, AMQP, Rails, etc) in my head without writing anything down. That may seem special or it may not, I just find it rare, at least in my (diminutive) peer group. I've also designed all of these huge dreamy systems growing up, I have pictures and diagrams I drew in 5th grade :) They sure are funny to look back at!