It's very predictable that we'll have major market downturns for various reasons every 10 or 20 years because of history. If you are 25 years old you've lived t

It's very predictable that we'll have major market downturns for various reasons every 10 or 20 years because of history. If you are 25 years old you've lived through 3. I'm older and I've lived through 5 or 6, depending on how you count.