I do not believe s cyclicity. I think people invent their own cycles and follow them.
What to believe - the choice of each. However, there are facts. As in the previous cycle, after a year of falling prices for
BTC began to rise. Although this time the growth is too sharp. But, I believe, this will soon be compensated by a significant correction.
All the history of crypto prices is cyclicity. After growth there is a fall of the price. But in general crypto growth. In 2009 10 000 BTC costed 5$. Now 1 BTC costs 10800$.