None of the 'fictionals' know any more than we do. There is a large 'nonfictional' population, but they don't seem to know anything either, and they generally try to avoid us anyway.

The government of the island - if it even exists - is conspicuously absent, and has shown more than once that it is both beyond our reach and not worthy of our trust.

Add in the fact that the forcefield blocks any and all attempt at communication with the outside, and, unfortunately, what we have is that there is nobody we can ask. Or rather, there is nobody who can answer.