We rely so heavily on smartphones and other connected gadgets, but what is it that enables those devices to function? One of 1871's newest members, Crown Castle, the company enabling much of your wireless world, gives us a glimpse into the realm of cell towers, small cells, fiber optics and all things shared communications. This blog is part of the company’s “Tomorrow’s Chicago Today” series, which begins with a panel discussion on communications infrastructure Wednesday, December 5.