I am not a professional gambler. I sometimes bet on sports on sports sites just for fun. I have never participated in gambling on Bitcoin price fluctuations. Gambling on Bitcoin price fluctuations can be very popular with many people and they can play. I think gambling is very risky but if someone gambles on Bitcoin price fluctuations, it will be even riskier. Just as we consider futures trading to be very risky here, gambling on Bitcoin price fluctuations will be the same. However, for those who have a lot of experience in trading, gambling on Bitcoin price fluctuations can be somewhat positive.