Chicago's restaurants are seeing a rise in demand for late-night dining. Crain's reporter Ally Marotti talks with host Amy Guth about how operators are extending hours, devising new promotions closer to midnight.Plus: Loop retail vacancy tops 30% for the first time, Rivian laid off about 100 Illinois workers, Lurie restores electronic health records after cyberattack and the FAA says Boeing and Spirit AeroSystems audit finds 'multiple' quality lapses.Crain's Daily Gist listeners can get 20% off a one-year Crain’s Chicago Business digital subscription by visiting chicagobusiness.com/gist and using code “GIST” at checkout.