There's a PKD story about that: Second Variety: https://en.wikipedia.org/wiki/Second_Variety https://en.wikipedia.org/wiki/Second_Variety The Father Thing:

There's a PKD story about that: Second Variety: https://en.wikipedia.org/wiki/Second_Variety https://en.wikipedia.org/wiki/Second_Variety The Father Thing: https://en.wikipedia.org/wiki/The_Father-thing https://en.wikipedia.org/wiki/The_Father-thing The Hanging Stranger: https://en.wikipedia.org/wiki/The_Hanging_Stranger https://en.wikipedia.org/wiki/The_Hanging_Stranger Do Androids Dream of Electric Sheep: https://en.wikipedia.org/wiki/Do_Androids_Dream_of_Electric_Sheep%3F https://en.wikipedia.org/wiki/Do_Androids_Dream_of_Electric_... Quite a few, actually! Fake humans were his specialty. Philip K. Dick and the Fake Humans: https://www.bostonreview.net/articles/henry-farrell-philip-k-dick-and-fake-humans/ https://www.bostonreview.net/articles/henry-farrell-philip-k... >"the bombardment of pseudo-realities begins to produce inauthentic humans very quickly, spurious humans—as fake as the data pressing at them from all sides. My two topics are really one topic; they unite at this point. Fake realities will create fake humans. Or, fake humans will generate fake realities and then sell them to other humans, turning them, eventually, into forgeries of themselves. So we wind up with fake humans inventing fake realities and then peddling them to other fake humans." -PKD