optimize. as a. motto is to make as many mistakes as possible in a short a time as possible but i was only once because. i mean we have to learn and the mistakes make us smarter and they make the product safe. as it is these are the last details for the wing tips i think. the wing tips like most parts of the kite on made of carbon but they lose their shape. carbon is especially light and stable but it can't withstand everything. fabric wings these structures can survive a hard landing on scathed. they've been working on the carbon card for two years now and have already invested over a million euros in the prototypes but it's still not finished. the wind energy summit at hamburg is the team's chance to find new investors. that's