Full Idea
We can ask why a range of lexical items (e.g. 'stop' or 'know') trigger the presuppositions they do.
Gist of Idea
Why do certain words trigger presuppositions?
Source
Ofra Magidor (Category Mistakes [2013], 5.3.2)
Book Reference
Magidor,Ofra: 'Category Mistakes' [OUP 2013], p.129
A Reaction
I'm not sure whether we'll get an answer, but I would approach the question by thinking about mental files.