In 2017, the Bitcoin market and the cryptocurrency market were very good. However, in 2018 and 2019, the situation in the cryptocurrency market was not very good. However, since mid-2020, the cryptocurrency market has been much better. More in 2021 Bitcoin has broken the record of previous years. Currently, the cryptocurrency market is much worse. However, the situation in the cryptocurrency market is likely to improve a lot more. Bitcoin in particular will improve the situation.