So if you are 30 years old and doing well, you can take the free $20K per year you don’t need, and just stick it in an interest earning account?
That would be nice. Without any interest, at age 60 you have $600K free bucks.
With a good investment plan, you could have $1M free bucks.
Pretty much, although the 20k would get added to your taxable income so a high earner would have to pay a signification portion of it back in taxes.