Cicada Cycles

日期:2013/05/09

Cicadas leave the depths below to mate on prime numbers every 13 or 17 years so as not to be eaten by predators with normal life cycles of 1 or 2 or 3 years. One wonders whether other living things in nature have such prime cycles. The market has prime cycles. It likes to do overnight what a person that has to sleep can not take advantage of. If it's down big one night， and you cant sell a position， then it knows you can't stay up the next day or two， so it will go up to let others but not you get out of the position the next day. The idea can be generalized one thinks.