This videos are embedded in Youtube’s advanced privacy mode, which blocks the setting of Youtube cookies until an active click on the playback. By clicking on the play button, you give your consent for Youtube to set cookies on the terminal device you use, which can also be used to analyse usage behaviour for market research and marketing purposes. You can find more information on the use of cookies by YouTube in Google’s cookie policy at https://policies.google.com/technologies/types?hl=de