Fast for history, but not for people. Just look at North Korea. They've still got plenty of runway for more audacity. For CCP it's like infinity ahead.
Without the CCP it seems rather unlikely North Korea would continue to exist in its current way for long. The only remaining factor standing in the way of their fall then would be western nations not wishing to accept the sudden flood of North Korean refugees that would immediately emigrate from the country when they are no longer held there.