Hi Hakob

I did write 'entertains the possibility' (not 'accepts' etc.)  As far as I know that is true.

RE: 'there's been a lot of talk about the possibility of 2+2=5, but that is, in my opinion, just nonsense. 2+2=4 is true simply by definition. There can't possibly be a world where this is not so.'

Well, who knows what might be possible? The very idea of universes utterly different from ours forbids us from making pronouncements like "There can't possibly be a world where ...'. Doesn't it?

DA