Marcus Staiger reports for redfish how one of Berlin’s most radical neighbourhoods, Kreuzberg, is standing up to big data and gentrification.

Correction: A graphic in this report makes it appear as though Klaus Wowereit was mayor of Berlin from 2002-2007 when in fact he was Mayor from 2001-2014. Wowereit was responsible for the sell off of 110,000 public homes during the period of 2002-2007. We apologise for the confusing presentation of this information.