But of course there is some choice erm  let me give you a final southern er Africa example of this, Botswana geographically is one of those countries cut off from the sea, it's a very large country but much of it is uninhabitable because it's so arid  it's therefore a small country by almost any standards, number of people, the economy of er of Botswana is small and it's frankly dependent upon South Africa in many ways for its transport, for its economic wellbeing, for the movement of people erm and even some educational resources.