Taking the universe as a QM event most definitely implies there are uncountably many universes. The OP very clearly asked for non-standard instances of the question, and a generalization of the question most certainly applies thereto.
I certainly hope others do not continue to down-vote what they don't grasp, because LW will only be the worse off for it. (Not implying you down-voted, but if you weren't, then the one who did obviously hasn't the wherewithal to state an outright objection.)
Edit: if you don't "follow", at least state in what exactly you don't follow so that I can actually provide something to your explicit satisfaction.
I certainly hope others do not continue to down-vote what they don't grasp, because LW will only be the worse off for it.
I was the first person to downvote. Not because I don't grasp, but because I believe your explanation is in the best too brief to be generally intelligible. My negative opinion can be, of course, due to my stupidity, but as for my downvoting strategy, my own judgment is all I can rely upon. (My judgment also tells me that you appear a bit oversensitive to downvoting.)
state in what exactly you don't follow
From the former comment:
...
How many universes "branch off" from a "quantum event", and in how many of them is the cat dead vs alive, and what about non-50/50 scenarios, and please answer so that a physics dummy can maybe kind of understand?
(Is it just 1 with the live cat and 1 with the dead one?)