  Aging is a ubiquitous relaxation dynamic in disordered materials. It ensues
after a rapid quench from an equilibrium "fluid" state into a non-equilibrium,
history-dependent jammed state. We propose a physically motivated description
that contrasts sharply with a continuous-time random walk (CTRW) with broadly
distributed trapping times commonly used to fit aging data. A renewal process
like CTRW proves irreconcilable with the log-Poisson statistic exhibited, for
example, by jammed colloids as well as by disordered magnets. A log-Poisson
process is characteristic of the intermittent and decelerating dynamics of
jammed matter usually activated by record-breaking fluctuations ("quakes"). We
show that such a record dynamics (RD) provides a universal model for aging,
physically grounded in generic features of free-energy landscapes of disordered
systems.
