This book contains a development of most known physics from a unifying principle of information extremization. The principle states that when knowledge is sought by a person, the act of seeking creates for that observer the physical law that gives rise to the knowledge. For example, in making a measurement of position, the observer locally creates quantum mechanics - the physical law that gives rise to such a measurement. In this way, man creates his own local reality. For observations that do not involve time directly, the act of seeking such knowledge amounts to a game of information hoarding between the observer and nature. The payoff of the game is the law of physics in question.