Alright, spack, I won't edit this one, excepting typos.
You've taken original point entirely out of context, it was a point about the weaknesses of metaphysical belief systems. Nonetheless it is a weakness of scientific knowledge too.
Scientific belief, "as I call it?". Nope, not just me, believe it or not...
Science develops
theories, which can and do change, as new observations are made. Religion has
beliefs, which tend not to change, even when contradicting observations are made. Sorry if my semantics aren't right, but there is a difference between the two. Studying science does not mean you should trust anything blindly. Science is a method of inquiry, not a set of beliefs like a religion.
And my point was never that you shouldn't trust memories or beliefs or beliefs of others. You just shouldn't trust them as much as your own direct experience. When new experience contradicts beliefs, you need to accomodate the new experience, adjusting your beliefs accordingly. And when your experiences contradict the experiences of others, you should put the greatest trust in your own direct experiences.
According to you - science produces "understanding"
Uhm...I said no such thing. I referred to scientific method and understanding, and was referring to the approaches used by science to acquire knowledge not the body of knowledge its self. The body of knowledge contained by science is dynamic and changing. The underlying methods of inquiry haven't changed very much over the last few hundred years.
The common epistemological position is that there is a thing called "knowledge", and knowledge is justified true beliefs. Scientific knowledge is just that, a subset of knowledge, and thus of justified true beliefs.
I do not consider scientific knowledge anything more than
approximate knowledge, not
true knowledge. I've always thought "epistemology" is a big word that some philosophers like to label themselves with, nothing more.
Studying any form of science requires you take an enourmous body of knowledge on trust - no students perform even a fraction of the experiments that their discipline is built on. Textbooks have to be taken at face value. The whole structure of a discipline has to be taken at face value,
I disagree. My teachers didn't tell me to take things at face value. Most encouraged me to think for my self. But after trying a given percentage of the experiments in the books and they worked as would be expected under the various conditions, and after seeing that technologies based on such theories work, I learned to trust the ability of the theories to make predictions to a certain extent. Sort of an Occam razor sort of a thing. Yet my teachers still advised me that while it was very unlikely, I could be come famous if I could either disprove the theories, or come up with better formulations of them.
I know lots of people who go to school and get science degrees, and are basically stupid. They go to school, take everything for face value, work hard, pass the courses, and get good jobs. But they don't think for themselves, and aren't like the real scientists, the one's who think outside the box, who question long standing assumptions, and come up with newer better theories. I would say that too many scientists taking things for face value is what leads to bad theories being accepted in the first place, as well as stagnation of good theories that can be improved upon.
Unfortunately, although the "group" produces a situation in which there is pressure to follow what others have said, to let politics, personal bias, bigotry, etc influence supposedly rational scientific conclusions, the "group" is also essential for science to function.
I didn't say science didn't rely on a cooperative effort. But cooperative effort can go one way or another. For science to avoid the pitfalls of group think delusion or political pressure, it needs the diligence of every scientist as an individual to be critical thinker and not to cave in to the pressure of group think and politics. A good scientist doesn't just believe things because everyone else in his field takes it for face value, or because he'd lose his job if he didn't. He thinks it out. He sees things for himself and makes the best decision based on the information available. He may not understand everything in depth, but he still makes a thought out choice. And if he disagrees or has doubts, he needs to say it. Of course, if its bad for his career and he has a family to support, he won't.
My point is that for science to work, scientists must take some things as given. Otherwise nothing would get done,
But you still do that with some very serious discretion, I hope.
You portray as a flaw what is fundamental to the workings of science.
Accepting things for face value or due to social pressure is not fundamental to the workings of science. Peer review and critical thinking are fundamental to the workings of science. Accepting things for face value is a human limitation because we have limited time. Accepting things due to social pressure is due to other human weaknesses. And those limitations that we all have as humans are also the weaknesses of science. Science is a discipline, i.e. it requires a certain discipline to follow the methods of scientific inquiry, and thus its only as good as we humans as a group can discipline our selves.