The old gold standard was supposed to maintain the convertibility of gold in currency but now we're not even backing it with currency anymore with gold anymore ? so what does it mean?

旧的金本位制度目的在于,保持金子与货币的转换功能,但是现在我们甚至都,不用货币来支持它了，或是用金子,所以这意味着什么呢？

耶鲁公开课 - 金融市场课程节选