If bitcoin was always predictable - then maybe many rich people would get richer by investing in bitcoin between these two cycles. However, in reality it is unpredictable so each of them will still have doubts even though in the end they still get returns when they invest.
Didn't they? the rich have been make a lot money by investing in Bitcoin, there are many people get rich overnight in 2017. But, in 2021, they couldn't anymore because the best you can make is only earn 4x from your capital.
This time we might not able to earn 4x because the price is getting higher and higher.
I think, Bitcoin is the most predictable and profitable asset I've known, change my mind.