OK, just how smart are smart meters? Well in education terms they would probably still be at primary school.
I was trying to think of an analogy for them and the first one that came to mind was they are a bit like a “Haynes” manual. I know a bit old school but a bit like me really. (if you didn’t experience the enjoyment of “messing” about with old cars and taking things to bits just because you can, well, your loss)