whole supply chain crisis era. china and russia may share a border, but that border is extremely remote from everything that matters. russia -- the russian economy is west of the euros, the chinese economy is mostly along the coast. there is an immense distance between them. oil is normally shipped by pipelines to ports where it's loaded on to super tankers. there is no sea route from russia -- not a use bl one from russia to china, there is no pipeline crossing the entire expanse of siberia. you can put it into tank cars and put it on railroads, but there's only a handful of rail lines and, again, it's 3,500 miles from moscow to beijing. just logistically trying to make china the market for russia's oil doesn't work very well. and on the other side, on the import side, china is an industrial powerhouse, but still it's a middle income country