"Besser glücklich sein"

Last week I was in Kassel at the Dokfest, a documentary film festival. I had a great time exploring Kassel's cinemas and the diverse festival programme.
This post's title, "Besser glücklich sein", refers to a film I've seen and means something like "to be happy even better". I think it's an adequate mockery of the omnipresent desire to imporve or optimize just everything. As if beeing happy still needed improvement.
The photo was taken at Kassel central station, which also houses a cultural centre in November 2016.