Quote from: freezal on February 06, 2017, 10:52:00 AM

Hi tonych,

Please, let us known if the following reasoning is correct.

Say there are N wallets running on the byteball network at a given time.
All of them have the same list of 12 witnesses, all them being the 12 witnesses services you currently run to bootstrap the network securely.
Now, imagine that each one of those N wallets change 1 of their witnesses to another one, but that every one change to a different one (I know that is not the way it's meant to occur in practice, but this is a theoretical reasoning). I mean, now there are N different witnesses plus the 12 you run.
After this, is it possible for any wallet to change its list of 12 witnesses, at the same time, by any subset of 12 witnesses from the N witnesses set there are now at the network (not your 12 ones)?

When changing your witness list you remove one old witness and replace it with a new one. If the removed witness is the same on all nodes (which is more likely in practice, e.g. if negative information about a witness is released), all nodes stay compatible: only one mutation relative to the old list and relative to each other. The nodes can perform more changes as long as their new lists stay compatible.