China is really good at interventionism indeed. The problem with interventionism is it assumes that brutal, large scale political and economical decisions are

China is really good at interventionism indeed. The problem with interventionism is it assumes that brutal, large scale political and economical decisions are the correct ones and that all foreseeable consequences are taken into account. As witness by countless examples (eg the one child policy), their track record is far from exemplary. Also: history shows time and again that banning something that is in high actual demand usually only results in the market going underground.