Wait this is a different John Bell (https://publish.uwo.ca/~jbell/) than the Bell Inequalities (https://en.wikipedia.org/wiki/John_Stewart_Bell). But strangely that John Bell has also worked on quantum foundations (looks like quantum logic and contextuality).
(Not a defence, I was just recently thinking about the Bell Ineqs in terms of the Grothendieck Ineqs and this popped up in my feed)
Wait this is a different John Bell (https://publish.uwo.ca/~jbell/) than the Bell Inequalities (https://en.wikipedia.org/wiki/John_Stewart_Bell). But strangely that John Bell has also worked on quantum foundations (looks like quantum logic and contextuality).