In daily life, there are things Knowledge has to take into account because of his eye disease. “Especially in the evenings and in the winter when it gets dark earlier, but I can still live independently, do my job 100 percent, do sports and travel.” De Weertenaar would still be allowed to drive a car in the dark, but he no longer does so to protect himself and others. “Something will happen and there are more things that I have to take into account. For example, if I go to a cafe in the evening, I mainly go to bars that I know: there I know where the bar and the toilet are” , he explains. And he also goes out by bike in the evening, mainly in Weert. “I’ve come up with some tricks for myself, so it’s not like I stay home as soon as it gets dark. It’s just a bigger challenge when I go out, I have to prepare it well in my head. For example, I always make a wider turn on my bike so that I don’t hit a curb and I cycle from lamppost to lamppost.” He also now goes on a ‘summer holiday’ more often in October or November to a part of the world where it is longer light.