Future Money

I often hear people get rich when market is up, but people get even richer when market is down. How can that be done? I often wonder to myself. As a “half-cooked” stock investor myself buying a stock at the reasonable price and sell when it appreciate only make sense, but that will only earn me money during a bull market (market up), there is no way to make money with that method when market goes down and the only reasonable move is to wait it [...]