It's entirely about experience, and the threshold for each person is different. And as experience goes, there's always new challenges. You might not be nervous

It's entirely about experience, and the threshold for each person is different. And as experience goes, there's always new challenges. You might not be nervous now, but I bet if you got put in front of a large enough crowd (think Obama-sized) it would come back. But even then it's about experience, you learn to make it work for you.