Imagine a perfect circle Neil

You have just achieved something that neither nature nor maths can show you . I think that arguement

on perfect or 'ideal' shapes goes back to Plato. Now apply your 'ideal' to approaching infinity - so you already

imagine the answer but you can never demonstrate or verbalise it - though you can easily communicate it to

those willing to imagine. The paradox is that every responsive answer to your suggestion will be utterly unique.

If I am forced to be only logical then to give '1' a definite value I must first ask what is 1? a digit, a distance, an

infinity? I am defeated by the logic of others almost immediately.

I admit I also like Bob's '42' answer ......... a very nice age for a model

Dave