And the convenience of AR over an annotated picture is what makes the former much safer than the latter?
- Realize that you should try to research which parts of your breaker box are deadly in the first place
- Find the model number on the breaker box
- Google it, and sift through the results to find relevant information about which parts to touch/not touch
The mental loops you have to jump through would convince most people not to try at all, and just call up a professional. An annotated picture would be just as good, but having the hololens understand what you're looking at and the context of your situation (no doubt a difficult set of problems to solve) would make a huge difference.
I would postulate _exactly_ that the glasses would come with software preinstalled. Similar to how YouTube videos supplement so many instruction manuals today. Even then it's no directed primarily at the person that wants to repair a breaker box but instead the technician that would _install_ it. Though once the form factor is as ubiquitous as cell phones I'd imagine every support service will have an offering. I bet every Verizon tech would love to see exactly what Grandma is looking at when asked to reset her router. Which _then_ us to the opportunity for first responders to assist one another remotely. It's a value multiplier when we reduce time and increase quality in the same swing.
Look at the story about Azure Kinect helping to reduce hospital bed falls from 11,0000 a year to 0. We'll see similar reductions to: House fires do to rushed wiring jobs, defects in nearly any manufacturing process.
Remember that this is 'augmented' reality. What I hope isn't lost on folks is that the thing we're augmenting is ourselves. Granting a super human level of awareness and cognitive ability.
tl;dr - This is Tony Stark level tech.