On Friday, New York City mayor Bill de Blasio released the latest designs for the Union Square Tech Hub, a $US250 million ($325 million) project that aims to "create a central convening point for technology training and networking" as the Big Apple tumbles into the increasingly digital future. As evidenced in the designs released by the mayor's office, 14th street's new tech tower looks like what would happen if you asked IKEA to build a white-collar prison.