The window is however long you want to play, it's a meaningless...

The window is however long you want to play, it's a meaningless statement. The main aim is to buy undervalued stocks, and sell when they are overvalued. Generally those that can identify undervalued stocks will have the best chance of doing well in the stock market. Trying to time the market, or predict future crashes is a meaningless pursuit of time and will ultimately cost you capital gains. Your resentment against OG stocks because of past failures is irrational thinking.