Paperwriting, 12 with company
Sunday, December 14th, 2003The good thing about all this snow (though I think it just stopped snowing) is that my cats stop everything and sleep. More, even, than they usually do.
Since I am at home today, they are happy to sleep on my bed while I “work”.
I’m trying to figure out a formal way of explaining how modals pick out just the possible worlds that are made relevant in intensional verbs, so that they then can give information about instantiations of kinds in those possible worlds. I can sort of see my way through, but I have trouble explaining why the following is infelicitous:
- There’s a book about giraffes I’m looking for. It must have pictures in it.
Part of the problem is the other (irrelevant) sense of must. The one I want is the one that’s okay in
- I’m looking for any book about giraffes. It must have pictures in it.
There’s something about (1) that feels uninformative.
In (2), it might or might not be the case that this book you’re looking for exists. A book about giraffes with pictures of course, does, but if the second half said “It must have been illuminated by a monk in the 14th century”, it’s quite likely that it doesn’t. Even if it does exist, you’re probably never going to get it, but that’s not relevant.
In some worlds — not this one — there is indeed a book about giraffes that some monk painstakingly toiled over 600 years ago. In some of those worlds the search is successful. It’s those worlds that the must is referring to — the worlds were I find what I’m looking for. It gives us more information about the result of this search in those worlds.
If we know it’s a book about giraffes, that’s fine. There are lots of those. We then say more and more about this book, which doesn’t, perhaps, exist.
But in (1), we know the book exists. So going into the success worlds to tell us more about it . . . well, why is it wrong? I think it’s because this world might not bea success world (it’s at the Vatican and only the pope may read it; I am not the pope). So you’re giving information about success worlds, but not about the real actual book in this worldyou’re looking for.
I still think I’m missing something.