"Because 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. It is just a very large version of Disneyland. You can have the Pirate Ride or the Lincoln Simulacrum or Mr. Toad's Wild Ride—you can have all of them, but none is true." - PKD
Well, it's true that if you don't eat you'll die of starvation. (Or, if you happen to be in a computer simulation at the moment, that if you don't run through the acts which the simulation reckons as simulating eating, you'll end up in the state which the simulation reckons as dead, after having been in the state that the simulation reckons as starving -- which is the same thing from your perspective.) Perhaps something larger can be built out from there.
I think that what RKD is saying (whoever he is) is that large-scale manufacturing, plus a healthy dose of cheap plastics, have cut us off from physical construction and from the constrained but rather satisfying (at least when contemplated in hindsight) way of how we used to live. That, and he read enough _Dune_ that he's now talking like a Bene Gesserit...
Philip K Dick. He wrote this essay back in the 70s and was talking about what you mention as well as the impact of things like TV but I think it is even more relevant in the internet age. Based on the rest of your comment I think you'd enjoy his work.
edit: this is from http://deoxy.org/pkd_how2build.htm