There have been very sharp declines in global markets and many stock exchanges, and naturally, there are also sharp declines in crypto markets. Bitcoin and many other cryptocurrencies fell sharply today, but altcoins fell much more sharply, although Bitcoin is down, Bitcoin Dominance (BTC.D) has been rising for 3 days. It looks like the declines could go even deeper, but I don't think it will last too long, so I'm waiting calmly without making any sales. Also, it is useful to be more careful during times of fluctuation.