None of what Dropbox did was impossible before either (cue famous comment: https://news.ycombinator.com/item?id=9224 https://news.ycombinator.com/item?id=9224 )

None of what Dropbox did was impossible before either (cue famous comment: https://news.ycombinator.com/item?id=9224 https://news.ycombinator.com/item?id=9224 ). Us nerds often forget that possibility and usability are not nearly the same. Usage happens when non-technical people like editors are able to get their hands onto the technology.