in outliers, what is gladwell main claim in chapers 1-3?just his main claims and what was his main arguement

gladwell says that, the succesful people are the ones who
stand before kings may look like they did it all by themselves. But in fact they are
invaribly the beneficiaries of hidden advantages and extraordinary opportunities and
cultural legacies that allow them learn and work hard and make sense of the world in
ways other cannot. For example in Canada. In the beginning, his advantage isn't so much
that he is inherently better but only thathe is a little older. In the first chapter he
also thinks that the story of hockey and early birthdays says about success. It tells us
that our notion that it is the best and the brightest who effortlessly rise to the top
is much too simplistic. But they also got a big head start, an opportunity that they
neither deserved nor earned. And that opportunity played a critical role in their
succes.
 In the second chapter, Gladwell says that success is equal to talent
and the prepreations. But the effect of talent is quite less than the preperation. So,
the most important thing for success is prepreation. The question is how long will this
time is. The answer lead us to 10000 hours. The professional athletes, writers,
cmposers, chess players are the proof of this 10000 hours theory. For example, hockey
player that born early, Bill Gates, Bill Joy, The Beatles etc. Gladwell believes that
those people are the ones who used the opportunities that has given to them. In the
third chapter, Gladwell says that, IQ works only up to a point. Once someone has reached
an IQ of somewhere around 120, having additional IQ points doesn't seem to translate
into any measurable real-world advantage. For example, Chris Langan's IQ is 195 and
Einstein's IQ is 150 but it does not means that Chris Langan is smarter than Einstein.
For, Gladwell the important thing for IQ point is its satisfactoriness. After having
enough IQ the important thing is the other qualities you have, such as imagination and
lateral thinking. In conclusion, success is not thing that we obtain by ourselves. There
must be an opportunity and other qualifications in order to achieve
success