Some Google Algorithm Updates Are Jarring & Others More Gradual

In continuation to the conversation Mihai Aperghis had with John Mueller of Google about the core update timing, Mihai asked about why are some Google algorithm updates bold and jarring when they roll out and others more smooth. He compared the old Panda and Penguin updates that would show huge changes in a site's rankings in a few day period compared to now where you see a slow gradual impact over weeks....