Don and Tom explore the value of changing your mind in the face of new data—financial and otherwise. Sparked by Christine Benz’s recent Morningstar piece, they reflect on how their own views on DIY investing, target date funds, and even TIPS have evolved over time. Listener questions cover annuity taxes, Bitcoin inflation claims, covered call ETFs, and whether CDs beat bond funds in retirement. Grumpiness levels: elevated but entertaining.