@trwnh @jenniferplusplus @helge
Thanks for sharing, will take closer look later.
Initial impressions after reading:
1. I’d need to absorb & model Information Architecture {IA) for entire ActivityStream specification to put the context placeholder in context of base-class/object/implementation for actor, collection, etc.- https://www.interaction-design.org/literature/topics/information-architecture
2. Question: Is the context collection a bag abstract data type (https://algs4.cs.princeton.edu/13stacks/) or a graph with nodes & edges (https://ocw.mit.edu/courses/6-042j-mathematics-for-computer-science-fall-2010/f471f7b7034fabe8bbba5507df7d307f_MIT6_042JF10_chap05.pdf)?