For Platform, the key reason to focus on this is opening up another valuable surface beyond News Feed. This is important not only to expand, but because News Feed and therefore our current platform may actually be getting *less* valuable over time as more behavior moves to more private mediums like messaging.

Given how important messaging has become relative to News Feed where our platform primarily focuses, it seems like there is a large opportunity here, both to extend Messenger in a unique and differentiated way compared to other messaging products and to extend our development platform to another extremely important surface.