Dare to be stupid?

As we all know, and as I've said before, there are a lot of stupid people in the world. I mean a lot. A lot lot. What surprises me is the number of dumb people who are willing to freely show of their lack of intelligence. It happened all throughout high school and college. In nearly ever class, you'll get one of these people, almost always a female, who never understands ANYTHING and has to ask a question every two minutes because the teacher is going too fast or the material is confusing or something like that. "Wait a second. I don't get it. What did you mean by that?" Then half the time they won't get the explanation either. But nothing deters them from continuing to ask questions. Why is it always a girl? I'm not saying that guys are smarter. I guess what I'm saying is that guys are more conscious about the image that they portray to other people. At least that's what I've gathered from the evidence presented to me. Obviously this isn't a hard and fast rule. There's the occasional guy who doesn't understand stuff and asks too many questions. And I'm sure there are girls who choose to go on being confused rather than show off their incomprehension. I guess I look at it this way: it's better to be dumb in private than to be dumb in public. You're only dumb if people know you're dumb. It's like the old saying, "if a tree falls in the forest and nobody hears it, does it make a sound?" The answer is, no it doesn't make a sound. It makes sound waves, but if those waves are not perceived by a device, such as an ear, that can process them, they are not converted into sound. It's the same thing with stupidity. You may be stupid, but stupidity is simply the perception of other people of your lack of intelligence. So if you don't show them that you're dumb, you're not dumb. I guess what I'm saying is, don't feed the machine. But maybe some dumb people are just too dumb to understand that.