In my research it always cracked me up to find lots and lots of 5G advertisements everywhere when the emerging technologies to really support 5G wireless are largely still being refined, and when they become available you'll still need fiber to really make them work well. Fortunately WIRED wrote an article that spells all of this out :). I hope you enjoy it. A highlight from the article: "It’s just plain physics. In order to work, 99% of any “5G” wireless deployment will have to be fiber running very close to every home and business."