NOURIEL ROUBINI他的批评：btc太耗电。usdt跟法币一样波动。两者都没有自身产生的利润。
In essence, a flatcoin is a secure currency that is backed by hard assets and financial instruments with low volatility: it becomes a good store of value but also a global means of payment with a positive return rather than the 0 per cent of fiat.
然后他自己搞了一个 flatcoin，绑定一些固定收益的资产。能够抗通胀，又能够做为支付、流通手段。
