If anything should be obvious to everyone over 30, interventionists simply like to intervene. Whatever is going on, they will come up with a reason to intervene.
In China, the Chinese central bank props up the dollar (creating domestic inflation), so that Chinese goods can be sold cheaply overseas. In Russia, where there is apparent huge demand for certain Russian products (grain), Russia bans exports of grain, because, heaven forbid, they might be able to sell their product overseas.
Record temperatures and droughts in Russia and other parts of Eastern Europe have destroyed crops and have sent grain prices soaring. September wheat futures hit $7.11 a bushel on Wednesday, up 58% from June's lows. This should be a great opportunity for Russian farmers who have grain to sell, but Putin has banned grain exports. The farmers are a victim of Putin's poor understanding of basic economics
Putin really needs to just chill, instead of issuing edicts, and get a better grasp on what the law of comparative advantage teaches.