True. But there are other trivialities that need to be considered. The first thing I do when I've got 5+ pages is either hole punch or staple them. The secon

True. But there are other trivialities that need to be considered. The first thing I do when I've got 5+ pages is either hole punch or staple them. The second thing I do is scribble on it or highlight things. If I wasn't going to do that, I probably wouldn't have printed it out in the first place (unless it was for record-keeping, in which case the paper will probably never be reused anyway). If this becomes popular there will be a new industry around non-destructive paper management (more than our current choice of paper clips and highlighters). But I think the critical factor for success is if the technology development outpaces paper-thin, writable LED displays or even tablets (which have progressed a LOT in the last few years). If you can give your "paper" a WiFi connection is anybody really going to invest in traditional (but reusable) paper?