Why leave vacant public retail space empty – then no one can enjoy it. Instead, why not put these spaces to better use reflecting something other than a corporate commercial agenda? We art advocates are aware of the artistic vibrancy in Chicago. The Chicago Loop Alliance is too, which is why they started the Pop-Up Art Loop initiative. Pop-Up Art Loop takes over empty store fronts all over the downtown Chicago area. For the past year they have filled a number of spaces with strong art exhibits showcasing Chicago-based artists like Christophe Roberts and Ed Paschke. Want to know what happens when Damien Hirst meets Shepard Fairey? Better check out the next Pop-Up Art Loop space this Thursday, October 7th. Innovative art spaces taking over Chicago is not a trend. Alternative art spaces have existed for many decades. This must be a sign of the times because art communities, organizational initiatives and alternative programming are growing almost innumerably in the most depressing financial situation that the city of Chicago has faced in a long time. Speaking of ‘time’, the Merchandise Mart  and all its …