The reason I think this book is nicely packaged bullshit is because it presents exceptions as rules and then tries to build a theory out of it.
I wish it were as easy as Dr. Dweck describes it, but there are gotchas.
I can agree with the distinction of 'fixed' versus 'growth' mindsets (although... .. how do you measure that?), but that success is guaranteed if you believe and try... Not necessarily. Ask 9 startup founders out of 10.
Not achieving "success" (failing) is rarely free: it leaves emotional and physical scars.. Repeat it a couple of times and you're either dead or on your way there.
No, success is not guaranteed even if you try many many times times, even if you train a lot and believe a lot.
In fact, the rule is this: No matter how hard you try, you might still lose. Sorry about that.
And the reason for this is not mindset - the reason is your definition of success. If you try to win at the wrong game, you will probably lose at it. So pick your game wisely.
Of course, a fixed mindset will only land you some semi-boring job, a family, a couple of kids and a lot of mainstream entertainment.. I guess that's the definition of "failure" these days... But is it ?
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By the way, if you want useful advice about how to be successful in life, Bill Gates is a very bad choice. It might be counterintuitive at first, but think about it ... As a bird, is it smart to fly around with your mouth wide open in order to catch food... because that's what the whale does ?