… Intellectually and emotionally weakened by years of steadily degraded public discourse, we are now two separate ideological countries, LeftLand and RightLand, speaking different languages, the lines between us down. Not only do our two subcountries reason differently; they draw upon non-intersecting data sets and access entirely different mythological systems. …
In the old days, a liberal and a conservative (a “dove” and a “hawk,” say) got their data from one of three nightly news programs, a local paper, and a handful of national magazines, and were thus starting with the same basic facts (even if those facts were questionable, limited, or erroneous). Now each of us constructs a custom informational universe, wittingly (we choose to go to the sources that uphold our existing beliefs and thus flatter us) or unwittingly (our app algorithms do the driving for us). The data we get this way, pre-imprinted with spin and mythos, are intensely one-dimensional. CONT.
George Saunders, The New Yorker