Yes, I undestand that the crude model glimpsed is more related to the naivest many-worlds bifurcation than the full neo-everettian framework, and it surely is not the first time that I've intuited a connection that, when mathematic rubber met the road, turned out to be an error. I will stick to logic of course, since it's a logic enterprise, but I still suspect there will be applicable models to physics. Time and dedicated effort will tell!