Thankyou! You're very kind to say so :-) I have to say, I think for all of us if we devote all our time to one particular and extra-ordinarily narrow field we

Thankyou! You're very kind to say so :-) I have to say, I think for all of us if we devote all our time to one particular and extra-ordinarily narrow field we may well come know more than others in that field, it always remains the case that the difference between what we know and what there is to know, remains enourmous.