What ever happened to this work? It was exciting and seemed valuable but never made it into Pharo. The traited collections \[1\] seemed particularly interesting and useful 1 https://www.researchgate.net/profile/Damien-Pollet/publication/45942931_BLOC_a_Trait-Based_Collections_Library_-_a_Preliminary_Experience_Report/links/09e4150cb5b7b8e560000000/BLOC-a-Trait-Based-Collections-Library-a-Preliminary-Experience-Report.pdf?origin=publication_detail