Panta Rhei Collaborative ran an experimental workshop as part of the Floating University 2021 Free Radicals Programme from Friday 1st October to Sunday 3rd October. The workshop used Berlin as its laboratory, through several walking tours exploring three districts: Wedding/Gesundbrunnen, Schöneberg and Neukölln. These tours included visiting localised initiatives and sites of collective self-governance, witnessing places of stark contrasts between cultures and exploring radical typologies for new learning environments. The findings were then developed over three days at Floating University, with a final presentation and discussion evening. This mini zine illustrates the themes explored over the three days, where collectivised methodologies were used to explore key issues that related back to the commons, and how we might learn directly from the city.