13 year time cycle ?

If you measure from the 1974 SPX low (which would be the lowest price post Nixon's gold detachment) and count the 1987 blow off top pre crash high as the top of the first pure fiat fueled bull leg since Nixon's move (13 years) and measure exactly 13 years more you come to the EXACT fiat pumped high in the year 2000... add another 13 years and all of the increasingly desperate fiat pumpage you find yourself in the fall of 2013. The question is will the fall of 2013 be a high or a low if this anomaly continues ?  I suspect it will mark a low....