I don't think the issue is that it's hard to tax savings. Printing money is a pretty effective tax. I think the real issue is the money multiplier effect. If I

I don't think the issue is that it's hard to tax savings. Printing money is a pretty effective tax. I think the real issue is the money multiplier effect. If I spend a dollar, it's spent and re-spent. This means that it gets to be taxed many times.