 So the core vision of AR is to overlay the reality with the virtual image and I said if we can make it working as good as in Star Wars, then we really solved the problem of AR. But there's still quite many challenges remaining. And for instance, take the device at HoloLens that you might know, it's okay, but it's just so bulky and not so nice to look at that it looks more like Robocop. And it's definitely not something that you want to wear all day. And the other challenge comes with the price. Because again, for instance, HoloLens starts at the price of 3,500 US dollars and that's far out of the reach of an average individual and especially for students also. And there are also other companies like Magically, but they still don't solve the problem in a better way. And the third challenge is that public expectation of AR is very, very high. And that's because most of the people who saw something about AR, it was an animation and it wasn't actually rendered online on an AR device. So they expect to see crazy things and then it's a rock. And because there's still so many remaining challenges, there's no convincing solution until now. And because of that, students here from this campus wanted to learn more about it. And by actually starting a project and learning by proposing our own approaches specifically. And as I said, we started four weeks ago by defining what are our most core problems that we want to solve. And so we said we want to or trying to make a device that has a price lower than the price of a smartphone. And you might think, why smartphone? The thing is that nearly everybody can afford a smartphone. So if we manage to make a device, an AR device that has a lower price than an average smartphone, it's truly affordable. And the second point that is really important for us is that it's good looking. That means it's good looking and less bulky. In other words, something that you actually want to wear and can wear for a whole day. And with those goals in mind, we actually already did three prototypes in those four weeks. So we advanced quite quickly. And we have two core points that we came up with. The first point is that we do most of the heavy computations on the phone. Because nearly all the smartphones nowadays are actually computationally quite powerful. And if we do that also, the advantage is that we can reduce the size of the board of the AR device. Really significantly. And this reduces the price of the overall AR glasses. And it also makes it possible to make it, I'd say, less bulky. And the third part that is like a nice advantage is that the power consumption is much lower. That allows again to make smaller batteries. And this again reduces the size, the weight and the overall cost of the device. And as you can see, for instance, our core board is this ESP-based board. Even though it's quite small, it's astonishingly powerful and can handle one line of base detection and recognition. And still do, on the same time, live video downstream to a phone via Wi-Fi. And it costs $30, so it's really affordable. And the second part that we really focus on is the optical system. Because the optical system is one of the main reasons why AR devices are so bulky, so heavy and so expensive. And we really try to reduce the complexity of the optical system. And because of that, we started with the most simple thing that one can do. We just, at the beginning, we just placed a display in front of the eye. And now we're using a transparent OLED display. And with a small distance, like a few millimeters to the display, we have a lens in order that the human eye can focus actually on it. Because the human eye can focus on distances or objects that are near more or less 10 centimeters. So that's the current state of the project. And now the next step basically is to have a display which has a higher pixel density and also supports RGB colors. So that we can actually make our first useful applications. And yeah, so that was the short top-level overview of the project. And in case you have any questions or are interested in the project, better ask them immediately afterwards. Or also you can have me on WeChat because I won't be able to attend tomorrow. And if not, yeah, may AR be with you.