Calvinism is just another "in-process" system of theology with variants: there are Five-Point-Calvinists, Four-Point, Three-Point, two. There are Hyper-Calvinists and "Not-So-Hyper" Calvinists. There are Old-School and New. There are the purist, Calvin-Calvinists. And there are Calvinists who couch arguments in terms that only they can pronounce e.g., Sublapsarianism, Sublapsarianism, Infralapsarianism. However, they all have one thing in common: the certainty that only THEIR Calvinism is Truth.