If you’re a good Quinean, you want to believe the following two theses.
# The things that best scientific theory quantifies over exist
# Among the things that exist, there do not exist spooks or souls or certainly not _imaginary friends_
So it would be a little troubling if best scientific theory started quantifying over imaginary friends. But “some say that’s what will happen”:http://www.guardian.co.uk/uk_news/story/0,3604,1427987,00.html?gusrc=rss. The Quineans will have to find some way to paraphrase away the imaginary friends without paraphrasing away the benefits, should the benefits be genuine!