After astronomic levels of hype, the fifth generation of mobile networks has been a letdown for many consumers and hasn't even made phone carriers much money.How'd we end up here? What technological choices have held 5G back? And who really benefits from those choices?Business Insider producer Elizabeth McCauley sifts through the noise of industry reports and marketing and talks to experts to discover the truth.If you want to check out the sources that informed this video, check out this reading list.Show more