I seriously think that with the ETFs and Big Money's irruption, and retail's generally speaking battered economy -- double digit real inflation for four years, real estate bubble, historically high credit card debt, interest rates and difficulty to access favorable credit conditions... -- the 4 year cycle may be broken this time, and those applying the same strategies (staking, ride up, sell the top, wait for a 70% crash, accumulate again) are in for a very bitter surprise.