solarz
Brigadier
Critical thinking is a training, a skill, not a genetic trait. Just like any other trainable skills, someone can be good at it while others are less good at it. Most students in any nation start out without any training on critical thinking because their top priority is learning, not doubting whatever they are being taught. Since most people go to work immediately after college, they are stuck with the whatever-in-the-writing-must-be-correct mode. Of course, there are people who are born suspicious of everything. They have difficulty with authority and have difficulty accepting anything. However, this is NOT critical thinking.
Critical thinking has to be trained. You can't simply doubt any thing written without any reason. Those crazy nuts who doubt moon landing are not critical thinkers. You have to learn to look at the right places and ask the right questions. People spend a lot of time learning how to put on the critical thinking hat. I still remember first year in grad school, we were grilled so hard in those seminar classes. At first, we thought it would be the easiest class since it's simply reading a few papers and no tests, just some oral presentation discussing the papers. Yet, it became so hard. The professors kept asking "how do you know?" "Why do you think that is the case?" "What do you think they did wrong?" We always felt like a bunch of dumba$$$ after the class. We had a hard time understanding why we had to do all this. I mean these papers have been published in high impact peer reviewed journals. These are experts in the field. How can they do anything wrong??? They wouldn't allow it to be published if they found something wrong. But the truth is everybody makes mistakes, either out of carelessness, wrong hypothesis/theory, or lack of data.
I remember talking with my dad about all the scientific theories when i was in grad school. My dad was so frusated whenever I kept saying how great Newton and Eimstein were. He kept telling me that while it is OK to admire these great scientists, it is NOT OK to believe in their theories as if they are fact/truth. All their theories are only theories confirmed by experiments that could be performed at the time and limited by the knowledge known at the time. The only way to advance science is to believe in your heart that any theory can be wrong. Otherwise, we will be kept in this box and never be able to actually advance.
I very much agree with this assessment, but I would add that critical thinking is only possible once you have an existing world view to serve as your reference.
To take ahadicow's example, if we simply showed kids the horrors of war, it is not at all certain that they will be repulsed by it. Definitely, some children will be, but there will be others who think it's really cool. There still needs to be someone in a position of trust to tell those kids that people dying is a bad thing.
I like your example of scientific papers. Someone who has very little knowledge of biochem, for example, cannot critically examine a paper on biochem. They need to first accept the lessons taught by their biochem professors before they can gain the expertise needed to question the validity of those lessons.
Likewise in morality and critical thinking, you need to first have a set of morals before you can examine whether your morals are correct.