I think the important part is having a good learning curve. Having to speak in front of 100+ people without any prior experience is terrifying. However, there

I think the important part is having a good learning curve. Having to speak in front of 100+ people without any prior experience is terrifying. However, there are very challenging tasks that can help to build experience in smaller groups. Like talking about a topic you just received a second earlier, without preparation, in a group of 10 where everybody takes turns and knows the experience from both sides.