Many Internet users customize their consumption of news sources and other information in a way that fosters polarization. This, it could be argued, has elements both of the narrowing effect and the long tail. Americans seek out sources that reflect their personal beliefs, consistent with Anderson’s vision. But, akin to the narrowing Evans observes, large groups — liberals and conservatives — converge on different reference points, resulting in mutually unrecognizable versions of reality. The common lesson of all of these phenomena is to be cognizant that the tools we use affect us in ways we may not fully appreciate. We should always be searching, the findings suggest, for new ways to search.
Group Think
The explosion of online materials has two, somewhat contradictory effects. The scope of available information expands, remarkably so; but as a consequence, the information needs to be filtered somehow, and the filter is either reverse chronological order or popularity: