It also helps that the European Central Bank (ECB) accepts members' sovereign bonds as collateral on even terms-provided they retain a credit rating of a - or above.

Tech company UneeQ is heading for its "digital humans", which appear life-like on the screen not only in terms of language, but also because of facial movements: raised eyebrows, a smile, even a nod.

The policy China apparently recommends to us would not even work on its own terms.