As an actuary who has priced SPIA annuities, the mortality assumption becomes much more important, and is more volatile, esp over 75. Interest return impact only matters early on. So I would put more emphasis on how much are you willing to self insure your longevity risk when deciding when to take social security, not whether you can invest your self and maximize returns.
Agree with earlier post that this question is a luxury for a small group. Vast majority of people don’t have much of a reasonable choice when to take it, they have to for quality of life.
Agree with earlier post that this question is a luxury for a small group. Vast majority of people don’t have much of a reasonable choice when to take it, they have to for quality of life.