firmly, with Coveney and Highfield, that complexity is the scientific frontier." The Arrow of Time In 1991, Coveney and Highfield published their first book The Arrow of Time with a foreword by Nobelist Ilya Prigogine. The book became a Sunday Times top ten best-seller and New York Times notable book of the year. Research Coveney has a varied and active research portfolio, covering a wide range of disciplines and areas including: computational medicine and life sciences, condensed matter physics, computational chemistry and physics, and high performance computing, and has more than 500 publications in international scientific journals. Coveney worked with the Nobel laureate Ilya Prigogine at the Free University of Brussels (1985-87) and went on to publish work with the mathematician Oilver Penrose on rigorous foundations of irreversibility and the derivation of kinetic equations based on chaotic dynamical systems. He collaborated with Jonathan Wattis on extensions and generalisations of the Becker-Döring and Smoluchowski equations for the kinetics of aggregation-fragmentation processes which they applied to a wide range of phenomena, from self-reproducing micelles and vesicles to a scenario for the origin of the RNA world in which they showed that self-reproducing sequences of RNA can spontaneously arise from an aqueous mixture of the RNA nucleotide bases. During a period of eight years when he worked at Schlumberger Cambridge Research (SCR), Coveney initiated new lines of research in which advanced computational methods played a central role. Some parts of this work, to develop highly scalable lattice-gas and, later, lattice-Boltzmann models of complex fluids, was done in collaboration with Bruce M. Boghosian, then at Thinking Machines Corporation in Cambridge, Massachusetts (USA), following Schlumberger’s acquisition of a Connection Machine, the CM-5, from the company. These models described not only the equilibrium phenomenology of amphiphilic fluids (consisting of binary and ternary mixtures of oil, water and surfactant), but also their hydrodynamic behaviour including flow in complex geometries such as porous subterranean formations encountered in oil and gas production. He created the ME3D and LB3D codes in the period from 1993-2006 which were further extended and applied widely by his team and collaborators, including as the basis for research performed by many of his former PhD students and post-docs after they took up substantive appointments across the world. Over this period, he also contributed to underlying theory and applications of other so-called mesoscale modelling and simulation methods, including dissipative particle dynamics and the stochastic rotation method.