I've heard it said that if you diversify you won't too much no matter what happens. I don't know if this diversification refers to buying the stocks of different companies or going for non-stock related investments. Just wondering, what would make stocks a bad investment for anyone? Even if there's a market crash wouldn't the prices go back up after a while? Would buying and holding [at such times] be a good strategy or would it be safer to invest some of your money elsewhere . . . just in case?