"My dear Yanis... An Essay on Leftist Strategy" is a profound political essay that addresses the current, historically dangerous state of the world. Written as an open letter to Yanis Varoufakis, the prominent leader of the pan-European organization DIEM25 and former finance minister of Greece, the work offers a critical analysis of the challenges humanity faces. The author, Reinhard Paulsen, highlights the strategic approaches of the political left and discusses possible future perspectives. By combining personal address with analytical sharpness, the reader is invited to reflect on the role of politics in a changing world. The essay is written in German and is aimed at anyone interested in political strategies and their impact on society.