Fiber-to-the-home is expensive; could fixed 5G bridge the last mile?

To keep up with constantly increasing consumer demand for broadband to support emerging applications like streaming 4K video and virtual reality gaming, for instance, service providers are investing heavily in fiber optic network infrastructure. In some cases, major players like Comcast, AT&T, Verizon and others are deploying fiber-to-the-home to provide 1 Gbps or better download speeds.