Hi guys. I noticed that there is a limit in the number of objects you can become. In my case, I am becoming 2312157 objects. So..I don't expect that the become works. I imagine that it was not designed for so many objects in mind ;) However, what I would really understand is where is the limitation and the reason. And of course, if someone already knows which is the real number limit. Otherwise, I will do a kind of binary search and discover it. If you want to reproduce it: | dict | dict := Dictionary new. 2312157 timesRepeat: [ dict at: Object new put: Object new ]. 3 timesRepeat: [Smalltalk garbageCollect]. dict keys elementsForwardIdentityTo: dict values. throws a #primitiveFailed. Thanks, -- Mariano http://marianopeck.wordpress.com