Playing around with Bitcoin futures, I finally understand what "reverse operation" means. Decided to give it a try, but after three rounds, I was directly discouraged—when I want to go long, the market drops, and when I switch to short, it surges upward. It feels like the market is deliberately going against you, and when you don't move, it suddenly calms down. This experience gave me a new understanding of the "pitfalls" of contracts; I still need to think it over before daring to continue.