[tshaddox]

> The things in your first paragraph are all useful, but not killer apps (IMO). Just nice conveniences.

I think "nice conveniences" might move slower and get less attention, but in aggregate I suspect they're actually more important for a major long-lasting general-purpose computing platform than "killer apps." We always think of "killer apps" for smaller, narrower, shorter-lived platforms, like a particular gaming console when it launches, but less so for bigger, broader, older platforms like the Internet, personal computers, or smartphones. These huge platforms all had some things which were called "killer apps" (mostly early in their history), but I think we should attribute their longevity and ubiquity more to a massive aggregation of what could be called "nice conveniences." And my impression is that Facebook's bet is that AR/VR will be one of these huge, broad, ubiquitous, long-lasting platforms.