'Logic' implies a fixed set of principles. The comings and goings here nearly never hold fast to the same rules, so to speak, so in that manner of thinking, there is no logic-- or maybe just a very twisted version of logic that fluctuates too often and too dramatically to be mapped cleanly. The method is always in flux, as well. There is no set quota, unless the quota is one of curiosity and observation. The criteria are unique to each person. Of course, this is all speculation. Have I answered all of your questions?