You should try something like (Object withAllSubclasses reject: #isMeta) size... Also maybe start with ProtoObject...
In Squeak, I have ((Smalltalk allClassesAndTraits reject: #isTrait) difference: (ProtoObject withAllSubclasses reject: #isMeta)) size = 0 2015-05-21 22:14 GMT+02:00 Esteban Lorenzano <esteba...@gmail.com>: > Smalltalk allClassesAndTraits size. "5057" > Object withAllSubclasses size. “9900" > > I really do not understand :) > > Esteban >