Hi Dimitri Preambule: If you want to understand why I react like to the other thread: we are ***FIGHTING*** all day long to build a great system and this is not easy and I do not need to know how great are the other systems. If I want to know I can just drop Pharo and go coding in X. No need to have such discussion on PharoDev where we should be concentrated. Now if you and other want to contribute actively to Pharo here is a simple idea. Create one chapter (I will do the editing) similar to this one (you can also modify this one) to explain to a Pythoner, Rubbyist, Javascripter, the syntax and core libraries of Pharo. https://github.com/SquareBracketAssociates/PharoInProgress/tree/master/JavaC... It was on my todo but I would have to refresh my mind on these languages. Stef