I think this is inevitable. Whether to surrender or not isn't the point. The key is, as I've said before, if a single formula could predict the future, then there wouldn't be any poor people in this world—and, of course, no rich people either. If we’re talking about the ability to locally influence price trends, then it’s essentially the statements of those in power. For example, Trump right now. Of course, I’m not denying that formulas can, under certain conditions, deduce price trends. But that’s only when there’s no external interference. A formula can’t predict whether Trump will suddenly decide to mess with Iran, or whether Iran will just back down completely. So, my personal view has always been that formulas can be studied and referenced, and they can assist trading when combined with the current political, economic, and macro environment. Pure macro analysis might not guarantee 100% profits, pure data might not guarantee 100% profits, and pure formulas might not guarantee 100% profits either. Only by mastering your own investment logic as much as possible can you maximize your chances of making money.