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Civilization IV is a strategy game where the player has  the opportunity to create a civilization and dominate the world through a variety of ways. The game-play is interesting and sophisticated. For example, the player can choose from dozens of civilizations to start with and then found new cities in a map. Then, one must build its civilization from scratch by developing new technologies, organizing an army, build important infrastructure in cities, explore the map, make diplomacy with neighbor civilizations including trade bargaining, develop own territory and exploit resources. But at the same time, one needs to manage the economy and political system of the civilization as well as determining religion and social practices, and prevent barbaric invasions. There are even corporations and espionage practices.

Behavioral psychologist B. F. Skinner have once shocked psychologists around the world with the argument that freewill is an illusion, or the idea that we are not masters of our mind. Skinner published his argument in a book titled "Beyond Freedom and Dignity," where his ideas are supported by landmark experiments on animal behavior and which were generalized to support claims on human behavior. Skinner argues that human behavior is governed by conditioning and the effects of reinforcement. This also conform the basis for the once leading field in psychology, behaviorism. However, recent advances in imaging technologies and the studies revealed by neuroscience gave rise to a renewal on theories about consciousness, which are totally contradictory to those of behaviorism.

The claim that human behavior is all the consequences of precedent events is really a painful point for most people as it throws away the meaning of decision and control. Actually, this view must be wrong because there are things that cannot be defined correctly and satisfyingly as associations to past events.

Today, even a 5 years old kid knows about the universe. Everyone would agree that the universe is the space outside our planet, for some it is just the stars and the darkness in the sky. Yet, we know so little as to what the universe is in reality. Physicist around the world theorize that the universe is expanding, that it contains something called black energy, and that we might live in some giant void, but what is the meaning of all this with relation to the existence of the universe? What is the true nature of the Universe? This seems simple questions that someday some astronomer would come to answer, but they are not simple at all and the answer is beyond the knowledge of any living human in the present and in the past.