Not sure if you're joking or?
There is absolutely zero difference between "investing your SS" and "not pulling money out of your retirement accounts." Exactly the same thing. And that's how I'm doing it.
The most likely outcome, assuming guys like us live to see 70 yo, is that there will be little difference to our overall financial well being due to starting SS at 62, 66, or 70, or anywhere inbetween. At 70, folks who waited will begin to get a significantly higher SS payment. We'll have our continuing lower SS payment plus a signifcant chunk of extra money in our FIRE portfolios. Whether that chunk of extra money is enough to make up for the difference in SS amounts over the following years will depend on investment returns and how long we live. Only time will tell.
actually i'm not kidding. i already invest to my best. Not pulling money out of tax deferred funds because i'm taking ss is one thing. taking ss and investing in taxable investments is another.
using ss saves on taxes.