who'd have thunk? you and nxt are on the same side! i thought the two of you were unreconcilable after he nicked your name.
the theory of changing currencies is easier than actually doing so. i think russia acting alone to try to change the currency of energy transactions will not do much of anything. their economy is the size of italy's. they have far less economic power than you imply. and transactions have two sides.
how will russians buy the goods they want from the world if they are stuck with roubles and yuans? they still need euros and dollars.
as things stand, russia has made it likely that the shape of the supply of gas is going to change.