 We study ecosystems, not real ones, digital ones, underneath our digital cities. So let's be more specific because that's very abstract, right? So this is Rudy from Hamburg, a little local guy. Rudy wants to cycle more, it's good for the climate and himself, but he eats a good used bike. So he goes to eBay, as we all do, and Googles or eBay is for a good used bike. And then he clicks on accept, right? And accept is something we do so much in digital world. If you click on accept, you're part of the digital ecosystem of eBay. This is a big ecosystem. By clicking on accept, you agree to basically share your surfing behaviors with 900 legal entities around the world. It's China, it's the US, it's the EU, it's everywhere, global surveillance capitalism. Now back to Hamburg and our city. Let's think mobility of the future. And just think of the choices we have. So we have Rudy again. Rudy can do bike sharing, car sharing, transit. He can do scooter sharing, all just a fingertip away, but all very much location-based apps. So when you engage with these services, you immediately expose your locations to a big ecosystem of companies. 38 and just these nine examples, Google and Facebook just there in the background. I mean, don't get me wrong. I mean, it's a great opportunity. There are great services that we can use, but we need to think about what it does to us in terms of the behavior we are exposing. Don't get me wrong, I like this data sharing idea. The integration we get through all these services, the design designers can do. We're actually looking at the observable behavior of users, the decisions we can take in cities by basing decision on data. But if you share your fingerprint, a lot of data taken together gives you a pretty unique profile and anonymous is not anonymous in the end. So let's think about the cities you want. Primarily, cities were about freedom, but now urbanites are the best surveyed people on the planet. I don't think this is my view of the city of the future. So what can we do to fix this? What can we do to work against cities of surveillance? First and foremost, I think we need ecosystem awareness and management. That's something we actually study across several universities here. Can we actually see how much exposed we are to this big ecosystems of data sharing? Can we make it transparent? Can we make it explicit for people to agree to? And can we also enable developers of new services to see what they're doing? Sometimes exposure is just a click away. Secondly, I think we need much better regulation on location-based data. I'm really surprised. This is a vital data stream that shows everything about you, where you live, eat, pray, everything that's in the location. Why isn't there better and enforceable standards for how we deal with location data? And third, I think we need to think hard about information governance in these areas. Who do we want to regulate our data? Is it just us, the me? Well, we can do that, but it's tedious. This is the big platform where it's very convenient but a little bit carnivorous if you think surveillance capitalism. Is it the stay? Well, that's what be not my idea. I think we need to think about this idea of urban data cooperatives, sharing data, making it accountable to the membership. We have a great history of cooperatives in this country. They look a bit antiquated at the moment, but I think they paved a path for many villagers in the position of powerlessness to become part of agribusiness and banking. Why can't we copy that model to the digital world? That's something you're interested in. Come to the workshop tomorrow for cities about privacy and engage for a city set, a functional, but also set us free. Thank you very much.