Prof. Leonhardt arrives at KTH in Stockholm, Sweden. The three-month research visit is funded by the local “Digital Futures” Cluster of Excellence. His host is Prof. Seraina Dual, who researches and teaches in the “Technology and Health” Division, situated in the immediate vicinity of the Karolinska Institute and Hospital. As the door sign indicates, his colleague Nicolai Spicher from DTU in Copenhagen is his neighbour.