Friday’s question pile ranges from the safest bond fund around to the harder question of what retirement is actually for. Don sorts through the choices with his usual preference for simple, sturdy answers. He weighs the TSP G Fund against BND, checks the bona fides of Raisin and The College Investor, and argues that leaving work makes sense only when something better is waiting on the other side. Then comes a candid disagreement over 21-fund portfolios, followed by a pension decision for a ...