No the ledger is basically a single data unit managed by the close group of its address. Just like there are 32 nodes managing 1 SC data unit… There will be 32 nodes managing the ledger belonging to Joe XXX. Just like the SC data unit, where the old and new owners are updated. The Ledger will update from the old balance to the new balance.
Keep in mind, a group changes after a churn event, so the 32 members are not always the same 32 members after churn.
That is an interesting idea. That could also apply to the ledger accounts for individuals. If it does work, it would reduce Network load and possibly make transactions faster?
But I don’t think we are going down this road. Some of my ideas have not been very popular lately.