If you know the answer you're under the age of 35 or a smart middle-aged person. I am not. When I was in Florida spending time with Dad and many people in their 70s, they looked at my 4G phone like I was some sort of time traveler. "What does the 'G' stand for", asked a 79 year old friend of my father. Embarrassed I replied, "ummm, gooder?"