 The non-animated Minkowski diagram may be “static”, but, as Park points out, the static diagram represents the evolution in (proper) time of systems along their world lines. The diagram, if Park is correct, need not itself be animated to represent dynamical phenomena. If Park is correct, then what Yourgrau called a “mistake” is in fact a virtue of Stein’s account, a feature and not a bug. Stein makes no attempt to animate his geometric picture but leaves whatever transience there may be to reside in that which it depicts.