Let's face it -- pedestrians are already running amok in major city crosswalks; it's not like we really need to help them hold up the line of traffic any longer while their light is red, is it? All pent up aggression aside, Hanyoung Lee's brilliant Virtual Wall concept could certainly assist the non-hardened tourists cross from one side to another without fear of being flattened. Essentially, the light-formed barrier would keep cars and Earthlings separated while individuals are cleared to walk, and while we aren't sure if bumping into said obstacle would cause tire deflation, engine stall or any other totally tough consequences, we can't imagine it being too effective (or fun, in a devilish way) otherwise.