I don't understand how, in the case of tech CEOs, this so called "groupthink" is such a problem. The fact is, as you rely more and more on a system of reason a

I don't understand how, in the case of tech CEOs, this so called "groupthink" is such a problem. The fact is, as you rely more and more on a system of reason and evidence to make your decisions, your opinions will tend to seem more and more consistent with other people who subscribe to that system. This consistency is just a side-effect of having a good system.