No. I believe anyone that doesn't suffer from a serious mental disability can become competant given the right amount of time.
Now, let me specifically address being successful at a bootcamp. I don't believe everyone can be successful in a bootcamp, but only if they haven't set themselves, or their lives, up for success. Here's the factors that have led to people not being successful.
So far, this has been about 15 students in my time at Nashville Software School. It's a vast minority. Maybe 3% to 5% of students? Just a rough guess.
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