Evidence-based research has always been part of the way we develop new treatments and medicines. But how has it been done in the past? And what experiments are being done with psychedelics today? Meet doctor at the Psychiatric Centre at Rigshospitalet Mathias Ebbesen Jensen and city archivist at Frederiksberg Municipality Caspar Christiansen in a conversation about psychedelics, experimental research and the history of Frederiksberg Hospital. The conversation is moderated by journalist Anders Haubart Madsen. NB. This event will be in Danish.