The simulated money is fake, not real. It will be uncomfortable to lose a firm offer, and it will panic if it falls. Simulation is like a game, you won't feel anything if you lose money. Due to the loss, the company will sell and close its position. The key question is whether to speculate in futures or stocks. Technology alone is not enough. When you fall, you continue to fall before you finish falling. At this time, you will lose money. Because the decline is relatively large, it will lose a lot of money, and it will cause the phenomenon of cutting meat and stopping loss because of fear of falling all the time.