Speculation is so attractive because it gives us what we want most. ----------free!It is the freest industry. We can trade as we like, and we only need to be responsible for our own capital.However, this ultimate freedom is the most dangerous trap, because it will lead us to lose control and indulgence, and it will lead us to follow our own human nature and do whatever we want.For example, when I first started trading, I could generate transactions based on someone else's words, and I could fill up my position directly due to short-term profits, or even roll over the position, and I once fought to the death because of dissatisfaction.The more free we are, the more indulgent we are. This may also be part of our human nature.