Do you think "dumbness" is inherent or a learned behaviour? Are some people just hopeless? Is it a result of evolution of a species (Survival of the Fittest)? The idea of the bell curve would say that some people are simply more intelligent than others - that 5 out of every 20 will be smart, 5 will be dumb and 10 will be average, and there's nothing they can do about it.
Could anyone be taught using the freer, "open source" idea of learning, spurred on by oneself? Can everyone be able to use critical thinking? Or, even if trained from a young age, would some people simply need to be taught every lesson?
What do you think?