Think for yourself?

On the way home, I was listening to George Hrab's Song entitled "Think for Yourself", the Beatles had a song with that title as well. It is a song, that I as a Free Thinking advocate agree, it is a song about learning how to be a critical, skeptical thinker, to don't accept what someone else say, believe, or sale you without asking who, what, when, where, how, and especially why. As I listened to the lyrics, I had an insight in which, I thought about evolution, especially Human Evolution. We primates emerged on the scene about 30 million years ago, then the hominids separated from Chimps and Bonobos about 6 to 8 million years ago. The most famous of our early ancestors is Lucy also known as Australopithecus afarensis who lived 3.2 million years ago in Ethiopia although she wasn't the first hominid, a recent fossil of Ardi (Ardipithecus Ramidus) pushes hominid evolution back to approximately 4.4 million years ago when, due to probably climate change some primates begin to walked on two feet. Being bipedal in an environment where the ancestors of lions, leopards, cheetahs, and hyenas where looking for their next meal was a tremendous risk but also gave them advantages it freed up their hands and allow them to see their predators in the changing environment, and this with many other variables led to higher development and evolution of the hominid brain, which eventually gave us an advantage on the East African plains and here I am writing about it,(isn't evolution da bomb!). In order to survive the early hominids had to cooperate and work together in order to survive. This led to us being a social species and it led to human primates having longer childhoods than our primate cousins. For example, a Daniel Dennett wrote in Breaking the Spell, Religion as a Natural Phenomenon, "Natural Selection build child brains with the tendency to believe whatever their parents and tribal elders tell them", it had survival benefits because it you were warned about going near the water hole because of crocodiles, if someone disobeyed and was eaten this reinforced the authority and social order of the clan or tribe. Another example, would be if someone was kicked out of the group and was later found dead or eaten by hyenas this reinforced the social order.Therefore, my argument is thinking individually or thinking for yourself is a recent phenomenon in our species way of thinking for a species who lived for millions of years who lived in social groups in order to survive, and propagate they had to think collectively therefore, I think group-thinking is the default position in our brains and to think for yourself take effort and practice and we don't do this well as a species, because for most of our evolutionary history we had to groupthink. What is Groupthink? Groupthink, "a term coined by social psychologist Irving Janis (1972), occurs when a group makes faulty decisions because group pressures lead to a deterioration of "mental efficiency, reality testing, and moral judgment" (p. 9). Groups affected by groupthink ignore alternatives and tend to take irrational actions that dehumanize other groups. A group is especially vulnerable to groupthink when its members are similar in background, when the group is insulated from outside opinions, and when there are no clear rules for decision making. source: (http://www.psysr.org/about/pubs_resources/groupthink%20overview.htm) This is why religion thrives because it's probably a byproduct of groupthinking. In Summary, I think groupthinking evolved out of our sociology need to survive, cooperate and pass-on our genes (DNA) and thinking as an individual is a new phenomena and we default to groupthinking because we evolved in social groups that banded together to survive on the East African plains. Think about it or think for yourself, but it will take practice to override our default towards groupthinking. John D. Socrates a.k.a. The African Socrates.