what I got from the new posts is that CS is simply a shorthand for genetic material or the spacific segments of DNA that are being discussed, I dont understand why you want an explonation for this...
also you people get way too technical with the term random, its an impossible mathmatical function shorthandedly used to defign something that has so many variables involved with the outcome that it wuld be inpractical if not impossible at the given time to attempt to calculate especially if the model works, simply useing a random variable, like someone who i've now forgotten said, when you flip a coin there is an arguably infinate or extensively long chain of events leading up to it with factors that are only existant currently as their spread out effect