>But 48fps is simply smoother, and just as they are able to fake up 3D on films that were never shot that way, they will be able to digitally fake up with the extra frames between every 24fps frame and re-release all those old films in Astounding 48 FPS, New and Improved, Digitally Remastered, For a Limited Time Only....
Yeah, my TV did that (interpolated 24fps into 120fps) until I turned it off "motion enhancement". I hated the effect. Somehow the picture seemed artificial and less clear even though the action was arguably smoother. Motion interpolation is much more well understood and easier to implement than faking 3d, but it still produces bad results.
Motion interpolation generally only works well for a very small subset of common visual imagery. Complex motion confuses it, often obliterating the original motion which makes things look subtly unreal, dreamlike, or otherwise confusing to the viewer. Discreet sampling and reconstruction filters, which are guaranteed to be sub-optimal, intensify the problem. When the video source is a DVD or some other video that's been wrung through the motion estimation process at least once already, it can only get worse. Garbage in, garbage out, Chinese whispers, turd polish, and all that rhythm.