@Sherman cv,
Sorry, Sherman, for equating you with Al Qaeda supporters (not "fighters,"
just the people who support the cause), but you're right: they don't think.
They just accept, as truth, that the big bad infidels of western culture make
them poor, and steal their oil for low prices and that's why their lives are
so bad, and that we're all evil and would drag them to hell with us if they
don't listen to the holy men and reject our "liberalism" and "tolerance" of
other ways beside the way of the one true Allah.
I just finished re-reading a great book called "The Social Brain" by Michael
Gazzaniga. He's a neurosurgeon who worked with epileptics who had to
have their brains split in half to stop extreme seizures then be rehabilitated.
Through this, he gained a remarkable amount of insight into how the brain
works (he discovered the "left brain/right brain" differences) and located a
part of the brain that houses our beliefs.
If, for instance, you tell a child that they cannot do math enough times
when they are young, you in fact cause that part of the brain to develop
the reflex of discharging the chemicals that cause a reaction of anxiety
when they are presented with a math problem, which disrupts the brains
attempts to think and solve the problem.
If you tell a child they are ugly enough times that part of the brain
releases chemicals that cause anxiety and depression when they look
into a mirror, even if they happen to be beautiful their brains would
distort the image to make them accept they are ugly.
If you tell a child they are going to hell for this or that enough times when
they are young it is extremely difficult for them to be able to reason that
it might not be the case later, as that part of the brain will go into action
and flood the brain with chemicals that cause anxiety and fear.
In short, extremist religion is like child abuse, and just as damaging in
the long run. It's abuse that becomes addictive, since the brain counteracts
those chemicals with the chemicals that calm and soothe and create
pleasure.