I wouldn't say it's common sense. It only seems that way to a scientifically literate person because they are so completely familiar to those concepts that it seems absurd that anyone could possibly think anything else. I would argue that on the bare basics, it seems common-sensical to think that the world is flat, firmly rooted, with the sun, moon and stars circling us because that is what it certainly SEEMS like on the surface. If you had never known any science, you would not intuitively grasp that we are in fact circling the sun along with the other 'wandering' planets. It takes some thinking outside of the box and connecting several seemingly disparate conclusions to come to that fact. If faith and religion were completely absent, intelligent people could probably figure it out fairly quickly, but it's far from common sense. Celestial mechanics are far from the day-to-day events that guide our common-sense.
However, in this modern age where all this knowledge has already been accumulated and requires little effort beyond attention to grasp, why do people still hold onto long-outmoded concepts when it is so clear to the rest of us? Simple faith. It does not matter how much evidence you put before a person who does not VALUE evidence. Scientific proof is meaningless to a person whose mental processes have settled into a mode of uncritical blind faith. Once the candle of their mind has melted into a formless lump and the flame has sizzled out, the wax hardens and it becomes very difficult to reshape it into something useful again.
I like that reply Micah.
That makes me think of this:
Even after Brexit? :)
With Scotland saying they want to stay, Banjo, will it be Scexit?
I don't know.
My brain function suffered severely, beginning in 14 due to heavy doses of chemotherapy. At the end of 18 months and 256 treatments my brain was then subjected to 19 months of a mind altering experimental drug that at first sent me insane.
Two weeks ago I recognised a slight return to normal function.
During the entire time at no point did I entertain the existence of an imaginary god type universe. Indeed, the more deeply I was affected, the greater my contempt for those who although being healthy, had these fantasies.
I have recently begun to study the latest neurological finding regarding subjects such as choice. It may be that certain people are physically unable to discard their belief systems.
I've yet to learn much. My learning takes time now so I am approaching this slowly.
Hopefully science can one day provide a definitive answer.
Much of my reading has said that it is the cognitive dissonance and compartmentalization things that are going on in the brain.