Knowledge is a double edge sword for imagination. It exacerbates creativity but  still narrows the possibles. High is the temptation to take facts as the only possible reality.

I made a dream soon after a transit flight above Chicago: I was walking with a friend along canals and parks; I then took a flight above a white futuristic city,... I try here to make match my dream with the reality, I try to imagine a Chicago district by looking at the Google satellite map. I will not be able to imagine such things anymore in few years; Every Chicago Street will be digitalized in a first-person view by then.