If malls continue to shut down and decay over the next twenty years, someone should turn them into retirement communities for GenX and Millennials.

Imagine apartments built into what used to be department stores, (Oh, you're JC Penny 203? I'm at Sears 106). Get those old arcades up and running. Set up meal stations at the food court. Once people actually live there, stores will start to move back in.

If I'm unable to finish my life in my own home, that doesn't sound like a terrible option.