What are some potential obstacles Americans might face when saving for retirement and how can they overcome them?

The case study on social security in the book highlights the importance of social security as a safety net for individuals who are unable to save adequately for retirement or invest wisely. It underscores the fact that not everyone can be expected to be expert investors and that the economy should work for the people, not the other way around. The case study implies that social security, with its low operating costs and minimal bureaucracy, is an effective system that can help ensure financial stability for retirees.

The book 'Arguing with Zombies' by Paul Krugman addresses many contemporary debates including social inequality and universal healthcare. Krugman, a Nobel Prize winner in Economic Sciences, uses the concept of 'zombie ideas' to describe ideas that refuse to die despite evidence against them. He argues against the notion that everyone should be expert investors to secure their future, highlighting the importance of social security as a system that works with low operating costs and minimal bureaucracy. This can be seen as a critique of systems that exacerbate social inequality and a call for more universal systems of support, like universal healthcare.