Eric Detsi is currently an Associate Professor in Materials Science and Engineering at the University of Pennsylvania. He received his BSc (2006), MSc (2008), and PhD (with honors and highest distinction, 2012) degrees in Applied Physics at the University of Groningen in the Netherlands; afterward, he carried out his postdoctoral research in the Department of Chemistry at the University of California in Los Angeles (2013–2016) as a Netherlands Science Foundation Rubicon Fellow. He joined the University of Pennsylvania in 2016 as an Assistant Professor in Materials Science and Engineering. His current research involves electrochemical energy conversion and storage using nonconventional materials, such as liquid metals, nonprecious nanoporous metals, and disordered three-dimensional metal scaffolds. For details, see: https://directory.seas.upenn.edu/eric-detsi/. Jeff Th. M. DeHosson received a PhD in Physics from the University of Groningen, the Netherlands (with honors and highest distinction), and after his postdoctoral years in the USA (Northwestern University and UC Berkeley), he was appointed Professor in 1977 by the Crown (H.M. Queen Juliana). His passion is to carry out innovative and (pre-)competitive research in the field of materials sciences, with a particular emphasis on advances in (in situ) electron microscopy, lasers, and nanostructured materials, e.g., highly nanoporous materials, as started with Eric Detsi in 2008. He is the Elected Member of the Royal Netherlands Academy of Sciences (division physics), the Royal Holland Society for Sciences and Humanities, and Academia Europaea; the Editor of Acta Materialia journals; and a Fellow of various scientific societies, including TMS—USA—and FASM—USA. He acts as the Honorary Professor of Tsinghua University, Beijing; UST, Beijing; and the University of Port Elizabeth, SA. For his scientific research, he was honored with several international awards, including the European Materials Gold Medal, and he became Knighted by the Crown in 2019 (Knighthood, Netherlands Lion). For details, see https://www.rug.nl/staff/j.t.m.de.hosson/cv.