It seems that people are always saying that things are changing. Things aren't how they used to be. In some cases, this is
Yet, there are concepts or principles that do not change. Some are obvious laws of nature, like gravity. Others are subtle: when the stock you buy at $100 falls 50% in price (from $100 to $50), you now need a 100% gain to break even (it has to go from $50 to
When we forget these unchanging concepts and principles, we make mistakes. When we forget that perception is reality, we make money mistakes. But what is money?