  In a continuous-time setting, Fill (2010) proved, for a large class of
probabilistic sources, that the number of symbol comparisons used by QuickSort,
when centered by subtracting the mean and scaled by dividing by time, has a
limiting distribution, but proved little about that limiting random variable Y
-- not even that it is nondegenerate. We establish the nondegeneracy of Y. The
proof is perhaps surprisingly difficult.
