Hi, I wrote another article LampSort Revisited, Visualised Combining Object Logging & Agile Visualisation https://medium.com/concerning-pharo/lampsort-revisited-visualised-6652055ef8... It is an introduction and tutorial on object logging using a simple, concrete example, combining that technique with agile visualisation and advanced tools, to get amazing insight into code, easily. It cumulates in a full, animated visualisation as shown in the following screencast movie https://www.youtube.com/watch?v=Rrsm6E7iA9w Thanks to Pierre Chanson, Doru Girba and Alex Bregel for helping me and for their, their teams and the whole Pharo community's work making all this possible. Sven PS: This article is part of the 'Concerning Pharo' collection on medium.com [ https://medium.com/concerning-pharo ], which I maintain. It contains all my medium.com articles that are 'about software development using a pure dynamic object oriented language in an immersive live environment focused on simplicity and feedback'. -- Sven Van Caekenberghe Proudly supporting Pharo http://pharo.org http://association.pharo.org http://consortium.pharo.org