>>21990960Stocks will keep going up at least until the time that they start going down again. We will know for sure when that occurs because price changes will switch from an upward direction to a downward one. The main indicator that we can use to identify this switch is that we will start to see stock prices falling instead of rising. That will tell us when returns on stocks have begun changing from positive to negative. With negative returns, that means that stock values will be shrinking rather than growing. Thus, the prices at which stocks are bought and sold will be going down instead of going up. In fact, if a stock's price is changing, then that means it is either falling or rising.
