I highly doubt that we would have it in 4 years again, the increase started in 2020 but the real one happened in 2021, which means that by 4 year rule it should be either 24 or 25 when the price goes up too much and the volatility goes insane. I doubt that it would be that late, by the end of this year or next year we are going to see huge movements as well.
This time around we didn't dropped as much as 2018 neither, that was like 80%+ drop and some even went down 90%+ as well, I doubt that we will go down that much this time around, it is not even 50% drop on bitcoin right now, so it will not be exactly the same thing, it will be a bit different for sure.
I believe this is normal. As time goes on and the price goes up, it is normal for volatility to be reduced: not so high cap prices and not so sharp drops. I think it's a bit like when a start-up is consolidating and becoming a big company.
I find it funny that the thread creator says that the price moves a lot. Let him look at how the price moved 10 years ago and compare.