Any generating set of an arbitrary property T von Neumann algebra has free entropy dimension ≤ 1

Suppose that N is a diffuse, property T von Neumann algebra and X is an arbitrary finite generating set of selfadjoint elements for N. By using rigidity/deformation arguments applied to representations of N in ultraproducts of full matrix algebras, we deduce that the microstate spaces of X are asymptotically discrete up to unitary conjugacy. We use this description to show that the free entropy dimension of X, delta(0) (X) is less than or equal to 1. It follows that when N embeds into the ultraproduct of the hyperfinite II(1) factor, then delta(0) (X) = 1 and otherwise, delta(0)(X) = -infinity. This generalizes the earlier results of Voiculescu, and Ge, Shen pertaining to SL(n)(Z) as well as the results of Connes, Shlyakhtenko pertaining to group generators of arbitrary property T algebras.