Along with digital-detox comes the latest trend against lazy comforts, harsh criticism of ignorance.

Tourists apparently can’t get enough of the quick wit and harsh critiques, as Düsseldorf’s Kunstpalast museum “performances” are completely sold out.

In spite of the rudeness, or perhaps because of it, the twice-monthly “Grumpy Guide” tour has been a surprise hit, with each one since the launch in May sold out. Anyone looking to book a spot will have to wait until next year.

“I never insult visitors directly, based on their personality or their appearance, but I insult them as a group,” said Carl Brandi, 33, the performance artist who conceived of and performs as the aggressive Langelinck. “My contempt is directed at an inferred ignorance that may not even exist. But I try to make them feel as ignorant as possible.”

Germany is giving a glimpse into a future generation of thinkers, unafraid of learning history. The recent American trend towards “know nothingism” (e.g. MAGA) wouldn’t stand a chance.