Since Louisville’s 21c Museum Hotel has announced a planned expansion into downtown Cincinnati, the discussion has centered on two issues: What does snagging an award-winning boutique hotel mean to local economic development and what will happen to the low-income residents of the Metropole Apartments? Important questions, but as an arts writer they're not my bailiwick. I can, however, offer some insight into what 21c might mean for the visual (and other) arts in Cincinnati.