Making housing out of high rises was supposed to be common sense fix for the nation’s housing crisis. It’s harder than it looks. | Selcuk Acar/Anadolu “Gotta go,” a young woman murmured into her phone, slipping into a gaggle of gawking New Yorkers pointing and staring at a teetering office tower in the heart of midtown Manhattan on Tuesday. “This building’s like collapsing in New York.”  If you squinted past the police barricades, you could see the sagging upper floors of the old Pfizer buildi