We've talked about all this before, but it's interesting to look at it from a slightly different perspective. If the land line telephone had never been invented in way it was, would we ever had even had accurate political polling? When you think about it, the landline phone as initially invented (i.e., no caller ID, no answering machines, regional numbering, no robo calling) was extremely unique in that it demanded that you answer it in a way that no device before or after has. So maybe we look at it a little backward and shouldn't assume there is any reason for population polling to be accurate given the essential dissappearance of the single technology that made it possible in the first place.