I got this too. Thank you. I like the way this guy writes and organizes his material.
Of course I like it partly because it simplifies the same way I did when I was trying to get a handle on this. If you are single and not terminally ill, wait till 70 or until you absolutely need it, whichever comes first.
Re-evaluate only if real interest rates get to 3%.
If you are married, have a minor child, etc etc, it only gets better. The base (and worst) case is single, and that dominates the commercially available competition.
If you wory abou tpolitical changes, and truly believe that the payouts will suffer enough to change this comparison, still, check against commercial annuities. Even a crippled SS is likely better, and it may never happen anyway.
Pay 0 attention to breakeven. They is no way to use your money once you are in heaven anyway.
I did deviate from this when the stock market went way down, and more importantly, real interest rates went way up. I started at about 68 1/2. But some kind person posted on this board that paybacks were perhaps going the way of the dodo. The next morning I was at the SS office getting what i needed to payback. It was a frustrating trip into government craziness, but it worked out fine and I then restarted as I had originally planned at age 70.
Ha