-- keepingthink aople using dropbox is not problem. for all of the things people use dropbox for, how do we solve those problems in a big way? both very horizontal products. they can collaborate in dropbox. anything you have, you can put in their. supporting all those -- put in thefre. supporting all those -- -- have you change any thought about that? things like facebook does? the only change is we are operating at a much greater scale now. saving a billion files a day on dropbox. billions of connections between users. that takes a lot of attention. >> that's get abstract for a second -- let's get a bit abstract for a second. people talking about a world in the future. had icloud and then they rolled back. a future where we don't have a file system. people have assets on demand as needed in context. this is image and the slacker. this is the slacker approach. preparing dropbox for that world, where the initial , arept which was strong you preparing for a world where that is older? ve. if you were to start with a blank slate, there's a