Because the question on my mind is, given the improvements in rendering, there's some year in which we can now render in real time, what took a long time for Pixar to render.
So, what is it? I believe I read that creating the 3D version of Toy Story ran at 24 fps, averaged across the entire film. So, basically, we already crossed the threshold for Toy Story. (But maybe that was only if you have a rendering farm?)
So, where are we at? Could we render a plausible Toy Story in real time now? Bug's Life? Monsters Inc?