Does Bernie Sanders's economic program amount to pie-in-the-sky nonsense? The short answer is no. All of his major proposals are grounded in solid economic reasoning and evidence.
Of course Hillary backers like Paul Krugman dispute this, but offer no reasons or alternatives to why these plans won't work. In Krugman's case it may be he is just pitching for Committee of 300 cohort Bill Clinton. Or maybe Krugman is hoping for the Treasury position under Hillary.... which would give us two disasters - Hillary and Krugman...