Very careful readers of this most excellent blog (I'm craving appreciation again) may recall that I recently noted in a comment that I wasn't really sure what nonlocality in physics meant.
Seems I'm not alone, as my favourite blogging physicist Sabine H writes in this post reviewing a book on the topic:
Locality and non-locality are topics as confusing as controversial, bothMy confusion is therefore excused...
in- and outside the community, and George’s book is a great
introduction to an intriguing development in contemporary physics. It’s a
courageous book. I can only imagine how much headache writing it must
have been, after I once organized a workshop on nonlocality and realized
that no two people could agree on what they even meant with the word.