Not a chance. Sure, it will almost certainly decline at some point in the next decade, but to predict the biggest stock market decline in history is really far fetched. Especially in an era when investment funds are holding onto record cash reserves in hopes of buying up cheap stocks during the next decline.
What do you mean?
There's a good San Francisco FRB white paper on it. Should be an easy Google whack. Boomers sell the world during their retirement burn.