I get asked the same set of questions at least a couple of times each week: What is 4G, anyway? Does “4G” mean the same thing across all of the carriers? I’ve been meaning to do a quick and humorous video explaining the whole mess, but just kept putting it off. I now realize why: unbeknownst to me, my brain was waiting for TechCrunch-alum Doug Aamoth to do it. The time has come, brain — the time… has… come.