If there is this echo that's updating the imprint, why is there ever a gap? Isn't it just staying synced all the time?

And so the idea was that the imprint is an excellent copy of you, but the echoes that come through aren't complete, which is why you would want to make a new imprint and get scanned again. You're getting flashes of memory, flashes of trauma, but it isn't the same as a 100% copy of you all the time being updated, at least the idea right now.

Just like a real echo in the real world, it doesn't have the same fidelity as the original source. And there's a certain level of distortion to it.

So you might have rough memories of the time before you regenerated, but it wouldn't be perfect recall. That's the idea.

And for those who are RPing, there's also some variation to it. Maybe you had minimal echoes and your new character remembers everything. It's up to you.