https://doi.org/10.1145/3654777.3676397
https://www.youtube.com/watch?v=O2vkBa0OJ6E
An elaborated targeted Stretchtext implementation, focused on abstracts of research papers. Users can select text in an abstract, then recursively expand it by asking for a definition, an expansion, or just an answer to a question. Expansions include links to source locations in the paper, enabling readers to dig in for more.