Abstract:  A recent preprint of P. Berk, M. Gorska and T. de la Rue cites
a theorem of T. Austin, M. Gorska, M. Lemanczyk and T. de la Rue which
describes completely all measure preserving transformations that are 
disjoint from all ergodic transformations. I will explain this result and describe
a proof that we (Eli Glasner and I) found for it.