I'm curious as to what happens when I start an app on my phone (assuming this is a Watch 1.x app, not one that runs on the phone itself). Are you a Watch app developer, and if so can you explain the steps that happen when I tap an app? For example, the first thing that usually happens is that a generic progress display appears for a few seconds. What's happening at this stage? Then the app starts but sometimes it has its own progress display, so is presumably fetching data from somewhere. But why didn't that happen earlier? Is it the fact that Bluetooth is causing the slowness of the Apple Watch, or is it just a lack of compute power? I find the latter a bit difficult to believe, but the latter seems very plausible. How quickly could an app start? I notice that the BBC News app starts quicker than other apps, for example. What voodoo is it using?