The difficulty of spending in retirement is, at least in part, psychological. People who have spent the past 30-40 years working so hard to accumulate their nest egg (living like a resident for the first few years out of training, utilizing a high savings rate, spending intentionally, etc.) can’t just flip a switch when it comes to the decumulation phase . The paycheck that replenishes your checking account every two weeks suddenly disappears, and the phrase, “Don’t worry; we can always make more money,” begins to ring hollow. Your spending rate becomes even more important, and you have to mathematically figure out how much you can withdraw from your portfolio so you don’t run out of money before you leave this earth for good. A lifelong accumulator doesn't flip a switch and magically become a decumulator. It’s psychologically recalibrating your entire money life. The Toughest Problem for a Retiree How could that paradigm shift not be difficult?…