What do the Turks like about India

Migration debate: "Don't you like Turks, Mr. Sarrazin?"

World on Sunday: Your book is a best seller even before it is published. Did you thank the Chancellor and SPD leader Gabriel, who protested in advertising?

Thilo Sarrazin: It's amazing how many people talk about the book without having read it. But it seems that Ms. Merkel has made herself one of my best sales promoters.

World on Sunday: How did you come up with this Kassandra title?

Sarrazin: No researcher works without a working hypothesis, because his research must have a direction. I am a number-oriented person. I didn't form my opinion about Turks in Kreuzberg by going through here and saying: another headscarf or another stroller. I looked at the Berlin statistics. As the Senator of Finance, I have already considered: How do we actually pay for all of this?

World on Sunday: But you could also see that you don't like Turks.

Sarrazin: Then you have not read the book correctly. My sociological considerations go much further. I take the birth rate in Germany, which has been falling for 45 years, and the growing proportion of children from an educational background as a starting point. I show how certain performance indicators have been going down for years. I was most struck by statistics from BASF, which compared the test results of their apprentice applicants in arithmetic and spelling over a period of 35 years. The services go down dramatically.

World on Sunday: And is that supposed to be the fault of the Turks?

Sarrazin: I am analyzing a situation that hinders innovation in Germany. It wasn't until very late in the book that I came to the topic of migration.

World on Sunday: Who exactly is the “we” you speak of in the book?

Sarrazin: The identity of a people or a society is not static, but it does exist. There is a French, German, Dutch identity. If things go right, immigrants grow into such identities, but at some point they dissolve into this identity, the image of the melting pot is not wrong. Races change face over time, but they do so out of the continuous evolution of their identity. For more than 1000 years there has been a cultural continuum of development from the West Franconian Empire into today's France and from the East Franconian Empire into today's Germany. The cultural peculiarities of the peoples is not a legend, but determines the reality of Europe.

World on Sunday: Is there also a genetic identity?

Sarrazin: All Jews share a certain gene, Basques have certain genes that distinguish them from others.

World on Sunday: So we have different genes than the people here in the Turkish café?

Sarrazin: