So can somebody smart explain to me the following before in Squeak incomingInvocations was incomingInvocations incomingInvocations isNil ifTrue: [ incomingInvocations := OrderedCollection new ]. in oscar changes it is incomingInvocations <MSEProperty: #incomingInvocations type: #FAMIXInvocation opposite: #candidates> <mulivalued> <derived> ^ incomingInvocations values So what should I do. Because now I do not know! But I'm certainly stupid for sure. What I know is that this metastuff gets in our way. I do not care about reproducing complete code (which we cannot in FAME because lazy initialization and other useful code level idioms are not represented) and now instead of focusing on Moose I have to deal with meta representation concerns. Really I think that we got trapped there. Knowing where to stop is as important as doing it. Next time I will fight really hard against any smart cleaner cooler meta meta stuff. Which is sad because I know what I'm talking about. Stef _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev