@kennethamy,
Stupidity: Marked by a lack of intelligence or care; foolish or careless:
a stupid mistake.
Ignorance: The condition of being uneducated, unaware, or uninformed.
In response to your statement, it is actually a bit of both. The reason for mankind's ignorance is due to a lack of interest or desire to find the truth. Most if not all of us are on this forum to talk with people that care enough to research, learn, and know. We are here because we want the opinions of people worth getting opinions from. Not the stupid people that walk around like drones in this world doing as they are told without wanting to know why they are doing it.
As for the original post, I have felt this way for many years if not most of my life. I look around and see people that don't know more than what directly affects their lives and even some that know very little about that. You gave a list of things that people don't know and it seems that your general post points to politics and history. Why point only to history of the last 300 to 400 years. I do see that you listed one bit of information about gravity and how the world moves in this galaxy. Most don't know that Paganism is one of the oldest know religions, older than any of the 5 major branches of Christianity (Catholicism, Eastern Orthodox, Oriental Orthodox, Anglican and Protestant) which I also feel the need to point out they all have different views on the same religion and "word of god" they bring hatred and chaos to this world all in the attempt to call themselves the correct path and people blindly follow. Most don't even know the bible has been rewritten at least 3 know times and had information added and removed to better suit mankind's needs. I am not diving into that issue any further because I don't feel the need to spend the next week debating religion but the point can be summed up as simple as witch-hunts. These hunts were caused by the teachings of the church. The Hebrew Bible condemns sorcery. Deuteronomy 18:11-12 calls it an "abomination" and Exodus 22:18 prescribes "thou shalt not suffer a witch to live", and tales like that of 1 Samuel 28, reporting how Saul "hath cut off those that have familiar spirits, and the wizards, out of the land" suggesting that in practice, sorcery could at least lead to exile.
Ignorance and Stupidity both lead to pain, suffering, and death. Wars are started and continued because of mans lack of desire to learn or know but also the immense desire to criticize, hate, kill, and hurt because of false information.
People walk the streets and a hurt, scolded and damned because a small group of people decided to run some jet airliners into some building. I have seen Indians hurt and scolded because they are Al-Qaeda as well as many others. What is wrong with this world and the people in it...?
People will blindly follow what TV and other media tells them and it is sick and it will someday destroy us all. I will cut this short but there are so many other events and issues that are caused by a lack of knowledge. Poisons in our food because no one cares enough to stop it, the idea that steroids are bad even though the government regulated medical websites as well as many others have stated that there are no know long term side effect to taking them? They are illegal because the sports industry doesn't want them in the open. Qi is considered fiction when there are tons of research on the subject and many, many, many experiments that prove the existence of Qi and so much more on the matter. Most people believe that our galaxy is the entire universe? Our galaxy is small enough to make up a star cloud in other galaxies. Like I said I can go on forever.
To answer your question again? yes this is an issue and I really wish man would open their eyes and see the world. So much is lost because people don't take the time to learn or study or even look.
I will end this note on one interesting bit of information.
In the museum of National University of Peru, there is a rock on which is engraved a human figure, which, after close examination, was engraved 30000 years ago. However, this human figure is wearing clothes, a hat and a pair of shoes, observing celestial bodies through a telescope in his hands. How could people of 30000 years ago possibly have woven cloth and worn clothes? The most inconceivable is that he is holding an astronomical telescope to observe celestial bodies, and that he has certain knowledge of astronomy as well. We have been of the opinion that Galileo, a European, invented the telescope, which has a history of only over 300 years up to now. But who was it who invented the telescope 30000 years ago?
In 1972, a French plant imported this uranium ore. To their great surprise, chemical examinations showed that this ore had already been extracted and utilized, therefore they sent people of science to the country to investigate, and scientists from many other countries went there, too. They confirmed, at last, that this uranium ore was in fact a large-scale nuclear reactor, which was so well laid out that it would be impossible even for modern people to produce it. Then when was it completed? It was two billion years ago that it was completed, and it had been in operation for about 500000 years.