I have my reservations with this particular 'law' in that it defies the power of free will, reason and integrity. It may true that most people will tend to support the hypothesis by experience though not scientifically nor religiously. I feel that this denies the fact that human beings have a mind to decide and change patterns. My conclusion with this theory however would be that good things may be repeated time and again but not necessarily a must for those unpleasant. This would entirely depend on the determination of the one repeating and not as a 'way of life'. I believe that intelligent beings (human) have power to change their minds and not captives of a theory.