Sam I have just read your Einstein quote and it was exactly what I was trying to say in the post above!!!! Now I feel very clever and will need a week to get over it!

I don't agree with it though. bfp ( I think it was) wrote somewhere that he felt that the things that we don't understand today are not necessarily evidence of the supernatural. One day we humans will understand, and with the rational explanation will come understanding. So if the result is that what we now call the supernatural is explained by our own reasoning, it will obviously no longer be beyond our comprehension.

PS On the other hand maybe Einstein knew better than I do, just how much we don't know!