https://www.investopedia.com/articles/investing/090915/quant...
> "In theory, currency manipulation and a monetary policy like quantitative easing aren't the same thing. One is interest rate policy based and the other currency focused. However, as central banks began their QE programs, one result was the weakening of its currency.
> Intentional or not, it can be argued that QE is, in some way, a form of currency engineering. Whether its manipulation that will always be up for debate."