The past few weeks or months in the investment blogosphere; some smart Alec bloggers have began to write more on their hindsight wisdom to teach others in the cyberspace "valuable" investing lessons of Do and Don't and What to avoid!  After reading these impressive hindsight wisdom investing lessons; they made you look like idiots. Some in the cyberspace couldn't take it anymore and also began to seek second opinions and confirmation from other investment bloggers. Who is the prime candidate to check arh? What is behind investing over decades to become successful long-term retail investors? One "Guru" defined in his investing strategy as three years. But, Uncle8888 defined long-term investing as the day till you reach your investing goals e.g. reaching the edge of your financial independence or sustainable retirement income for life. So long-term investing may over one or more decades over market cycles, economic cycles, commodity cycles, wars and crisis......