Continuity of consciousness very quickly becomes a hard word to define : not only do you interrupt consciousness for several hours on a nightly basis, you actually can go into reduced awareness modes on a regular basis even when 'awake'.
Moreover, it might not be necessary to interrupt continuity of consciousness in order to "replace parts" in the brain. Hemispherectomies demonstrate that large portions of the brain can be removed at once without causing death, for example.
Haven't had one of these for awhile. This thread is for questions or comments that you've felt silly about not knowing/understanding. Let's try to exchange info that seems obvious, knowing that due to the illusion of transparency it really isn't so obvious!