FranzOren wrote:
I don't know how to do basic math. Does that mean that I am stupid? I feel very depressed.
It simply means math is something that is hard for you. Math, evolutionarily speaking, is a recent development in history. There is no reason you should be good at it. I am dyslexic. The written language is the same thing. But being dyslexic dos not mean I am stupid. (Also, I have met a lot of people that finished math at school that are really not good at math--not sure how they did it, but that ability did not stay with them.)
Now, I have worked had to overcome my dyslexia, mostly because I had to. It was an extremely long and difficult process--I am still working on it and writing is not easy for me even now. But that does not mean I am stupid, but simply have a hard time thinking in linguistic terms.
All of these skill we think should be "natural" for people are rather arbitrary and a product of social systems. We need math and writing skills for a bureaucratic world. Imagine if we lived in a society that valued art. Those that could not write and play music would be thought of as "learning disabled." Just think how many would fall into that category?