After half a century lull, interest in the study of this asymptotic symmetry group of General Relativity (GR) surged, in part due to the advent of gravitational-wave astronomy (the hope of which prompted the pioneering 1962 studies). Interestingly, the extension of ordinary four spacetime translations to infinite-dimensional supertranslations, viewed in 1962 with consternation, is interpreted, half a century later, to be a key feature of the original BMS symmetry.