The brain’s experience teaches it how to survive. A human brain that is born where life is basic, a matter of providing food, shelter, and respectful relationships with all living things, is a simple, practical brain. But for a brain that is born where life is so complicated that one never knows enough and must depend on those who know more, i.e., teachers, leaders, experts, etc., life is primarily a matter of acquiring information to develop one’s latest strategy for survival.
Human existence can be as simple and practical as growing food, creating shelter, and developing respectful relationships with all other earthly beings. Or human existence can be a deadly, dastardly game played to determine how far one can go before death - be it brain death or the death of the player.
Whether this situation, the human condition, is good, bad, or inevitable, only the psychologically dead human brain can say because it was dying to find out.