Care to fill in the explanation of how people who ignore assign 0 probability to failure take well calculated risks?
The basic idea is that people who assume things will work out make better decisions. If you think you will be successful, individual interactions take on less importance, and you can execute in an efficient way.
I have met "entrepreneurs" who have said things like, "if this fails, we will just do another project! No big deal, failure is part of the process" conversely I have met people in corporate America who assume that any financial or personal risk is completely ridiculous to take.
The 3rd group I have met are entrepreneurs who are willing to take a personal and financial risk while assuming success will be there's despite the odds. They never talk about failure because it simply isn't an option until it is inevitable. They stay consistently focused on execution and do not worry at all about the potential for failure because at their core it doesn't matter.
People in the 3rd group are the people I want to work with every time. They take well calculated risks naturally and deliver results.