Why The Fed's 0% Interest Rate Policy Hurts The Economy & Savers

Hedge Fund Manager David Einhorn explains how $200 billion per year is not being spent in the economy by savers because of the 0% interest rate policies.  Janet Yellen said yes our policies hurt savers but helps the overall economy?  I frankly think the Feds theories are incredibly flawed.  Gains in the stock market and housing are not being spent and the whole wealth effect theory only benefits a few people and not the masses.