„There are talks where you don’t have the feeling that you need to prepare much. Then there are TED Talks. A TED Talk has a certain structure, rhythm, maybe even rules. Thus I was happy that you wanted – and were able to! – introduce me to the secrets of TED. The regular sessions forced me to deal with my topic and my issues intensively and to speak with less fear (even though I was still nervous). Moreover I learnt a lot about dramaturgy and about keeping it short and clear. My talk transformed into a story with a great beginning and an equally exciting end. I have learnt a lot for which I am still thankful to you today because I try to tell a story in all of my talks now and try to abstain from slides. Five stars.“ (translated from German)

David's TEDxBerlin Talk: