"a supreme IQ? or maybe just a good sense of humor?" - evolution.

I saw the President of MENSA for the US, interviewed; He said the good thing about MENSA club meetings was, "everyone understood your jokes".

My brother once encountered a golden-graduatecon his staff temprorery enroute to higher things [there's a pun if you patient]. This guy had deliver a letter to the sixty-something floor of MLC Tower in Martin Place, Sydney [low-medium rise]. How can I find the MLC Tower? My brother's "common sense" reply was to stand in the centre of Martin Place and look-up.

[Any Sydney-sider knows there is only one building above thirty stories in Martin Place, even if they don't know its name.]

Gibo. You say commonsense! Well if you don't take the angles and trajectory into consideration, there might be a sand bar or what got the man in trouble in the first place, or you might turn the wrong way and jump into a tree, then saving the drowning man would be pointless with a broken neck.
The poor man would be no better off. smile.

Individual. It is not ignorance, more like confusion.

Oliver. smile

Evolution,
silly me, here I am thinking that the more education one receives the more enlightened & thus less confused one should be.
Let's just be glad for all the level-headed thinkers who were not exposed to & confused by higher education.

Higher education aint so bright, says me with an "aint".
Think of all those bright fellows who split the atom and built the bomb.
There wasnt much commonsense then.
They seemed to have forgotten that if you build another weapon, be it bow and arrow or bomb, others will want it and then it gets used.

Evolution.
The Bible says we are made in the image of God so He will have what we have as IQ (far greater of course), commonsense and a sense of humour.
We got the sin nature additional though, through the fall.
God sure does show Himself.
He sends His Spirit to all who receive Jesus as their Saviour.
We see Him in Creation and in the perserverance of His Jesus followers.
Have you read Foxes Book of Martyrs?
For christians to go through some of that, there has to be a God they know intimately in very close relationship by His Spirit.
We're so stupid is easy ...we are a fallen species and we do dumb things related to greed and desires gone amiss.

Individual. The confusion comes with what mankind does with its education. You know as well as I do, not much in this world is logical. Gibo is on the money "bombs!. Einstein created confusion by using his higher education for mass destruction, plus now we have to find a place for the waste. At the time, no-bell prizes and pats on the back were warranted, cause it was break-though for medicines and so forth. But now the world lives in fear and dirty bombs, well perish the thought.

Overpopulation! again! another no brain-er. Religious in-differences, disease risks, cause we are all pack in like sardines and the reality goes on, and on and on. And you wonder why Iam confused.
Ignorant! Anyone would think your having a shot at me. But that's OK, I have a think skin. But maybe your right about me being ignorant, cause trying to tell the rest of the world they are the true meaning of word, well, you should know how hard that is.