Of all the different concepts Chimero covers in his piece, there is one in particular that stands out to me: “If something can be anything, it usually becomes everything.” It’s funny that Chimero mentions Apple’s iOS 7 as part of a new era for screens as a medium, as I distinctly remember watching the company’s WWDC 2013 keynote and seeing iOS 7 for the first time — gone were the many visual details emulating physical objects and experiences; instead I was looking at a design that, in its transparency-heavy aesthetic, draws attention to the fact that, “yes, your phone is a screen.” Like how UI layers overlap with each other in ways that cannot be replicated in real life (think about the Wi-Fi/Bluetooth toggles). The design celebrates the fact that it was made for screens as a medium — not screens as a convenient replacement for paper, but screens as a valuable medium in itself. It challenges the notion that something should become everything if it can be anything. Because it shouldn't; it should be more than that.
I agree with Chimero that “it’s best to view screens as a material for interaction and interface design.” Screens are a fundamentally different medium for communicating information because of, as Chimero notes, its capacity for change. Physical materials like paper can’t change on command. So if you’re spending that much money on screens, why treat it like paper?