What is Next-Gen?

Rosethorn writes "IGN's Sci-Fi Brain has a weekly column covering relevant topics in video games as they relate to science fiction. This week TK-422 defines what it takes to create a 'next-generation' gaming experience. He examines some innovative games from the past, and looks at where innovation will come from in the future." From the article: "Contrary to popular belief, the ability to create more realistic and lifelike graphical environments doesn't always count as innovation. Next-generation graphics should not just rely on a console's or PC's ability to render better visuals. Next-generation graphics should permit players to become completely immersed in the universe that the developers have created for them."