Hi! my name is Hernán Wilkinson, from Argentina, Smalltalker 🙂 , professor at the FCEyN-UBA, partner at 10Pines and FAST (Argentinean Foundation of Smalltalk). I’ve implemented LiveTyping for Cuis Smalltalk. LiveTyping collects types while the system is running (in Smalltalk that is all the time, even when programming) and retro-feed that info into de development environment to improve tools such as refactorings, autocomplete, etc. LiveTyping allows you to use development tools as if you were using a statically typed language but in a dynamically typed one, without the burden to define and maintain the types. I’ve also implemented many refactorings for Cuis Smalltalk and created a distribution called CuisUniversity to teach OO at the university, besides other things.