Even just traffic analysis makes any kind of communication potentially leaky. Encryption matters, but it doesn't protect against everything. Even the lack of communication leaks information.
I feel like an "Architect" should not be a standalone role. The architect for a project should be an engineer working on the project that can make decisions about the underlying architecture when a decision is needed.
I mentioned this in another comment, but I see battery life as solved for most people. I wear my watch all day and all night with a third party sleep tracking app. I then charge it in the morning while I shower and get dressed. That is always sufficient to keep my battery charged for 23.5/7 usage.
I had two Pebbles and the first thing that went wrong with them was the battery. If I didn't charge it every night it would die in the middle of the day.
I think most probably do, but in my opinion the optimal way to use this watch is to wear all day and night and charge in the morning while you get ready. I've been doing that for 2 years with my Series 3 and I have never run out of battery.
I was expecting to see an article about yet another retro pi but I’m seriously impressed by this. Not only is the hardware really cool but your tooling and software setup is equally impressive. Great job.
Other than that, I'd really like to get a game based on Mistborn. I think the allomancy mechanics could be very fun in a video game.