Mmm.
And maybe some model will tell us , some GPS module , in the mobile scenario where the person is at the moment. And um we 've sort of gone through that once before in the Deep Mail project and we noticed that first of all what are  I should 've brought some slides , but what our  So here 's the tower. Think of this as a two - dimensional representation of the tower. And our system led people here , to a point where they were facing a wall in front of the tower. There is no entrance there , but it just happens to be the closest point of the road network to the geometric center Because that 's how the algorithm works. So we took out that part of the road network as a hack and then it found actually the way to the entrance. which was now the closest point of the road network to
Yeah.
OK , geometric center. But what we actually observed in Heidelberg is that most people when they want to go there they actually don't want to enter , because it 's not really interesting. They wanna go to a completely different point where they can look at it and take a picture.