  Explosive percolation in the Achlioptas process has recently attracted much
research attention. From extensive simulations in an event-based ensemble, we
find that, in dimensions from $2$ to $6$ and on random graphs, the Achlioptas
processes all have two scaling windows and multiple fractal structures. The
mixing of these multiple scalings successfully explains the previously observed
anomalous phenomena in the conventional ensemble, and, moreover, correct
critical exponents are now determined with a high precision by the event-based
method. The multiple scalings and the ensemble inequivalence may bring new
insights for other statistical systems.
