If you truly, deep down in your heart, believe there is a crash coming soon then the best thing you can do with your money is to keep it in cash. Invest after

If you truly, deep down in your heart, believe there is a crash coming soon then the best thing you can do with your money is to keep it in cash. Invest after the crash. If, like most people, you aren't absolutely certain there will be a crash then you invest for the long haul. You have a diversified set of investments. You put in a little bit each month. After 30 years, barring a civilization destroying event, you'll be fine.