Why are Chicago museums so inconsistent? It’s always either feast or famine, a balance of the sublime and the craptastic. Sure, we have the world-class Art Institute, Field Museum, Shedd Aquarium, heck, I’ll even throw in the Chicago History Museum and National Museum of Mexican Art. But why must we continue to suffer through a contemporary art museum that is a legend in its own mind? A planetarium passing off 1990s technology as cutting edge? Or the biggest civic tithe of cultural mediocrity in the midwest, the Museum of Science and Industry?