Really we’ve only just got here.
In the blink of the evolutionary eye we have arrived at modern civilisation. For 99.9% of our history we have been foragers. Our ancestors lived in violent times where one mistake could mean death. Our human brain developed in those turbulent times
As a result our brain got really good at spotting threat and we developed our flight and fight response. That’s great for when there is a tiger around but not very handy when you have to deliver a presentation on Tuesday morning to the sales department.
Our stone-age brain helps us to over-think, over-worry, get entangled in thinking about what others are thinking. We make it all too complicated. As a result of this evolutionary legacy lots of people hate public speaking. Now that's the part you can blame on your ancestors 2 and half million years ago. But you also know without them - we wouldn't be here. So we have to learn how do deal with their legacy!
So we need a re-think.
We need to see public speaking differently. We need to make it simpler. So we can get past the stone-age part of our brain. And get on with our lives.