In the rush to come up with sustainable ways to spend down your retirement assets, we often run into the problem where the thought leadership would reduce the withdrawal rate to achieve a safer withdrawal plan. It is only within the financial blogosphere that this is encouraged and celebrated. Everywhere else in the real world, we tend to forget that people actually enjoy their money and if you actually want to make your finances sustainable until you are age 120, a lot of your wealth will remain unspent. For me, unspent wealth is fine as I have biological kids, but the FIRE movement is full of singles so this will just result in a lot of extremely wealthy godchildren, nieces and nephews. The problem is that the conventional approach to FIRE using the Bengen approach, suppose you begin with a portfolio size of $1,000,000, and you designate 4% or $40,000 as your expenses the following year. Then you adjust it...