This statement strikes me as very disconnected from the reality that the vast majority of people on this planet live in, and honestly, a little bit irritating. I'm well aware that many here on HN would be millionaires, but as somebody who grew up in poverty and is now a full-time uni student with no savings in the bank, and no safety net, I wouldn't describe my life as comfortable, but I'm not starving or sleeping on a park bench either. My largest expenses are rent, food and medical expenses. If somebody were to give me a hundred thousand dollars to invest, I am quite certain I could live comfortably for the rest of my life. I'd never own a Ferrari, but why would I need to?
In other words, I think your comment reflects the very problem that the posted article is discussing. To me, the idea of needing $10 million to be comfortable and not have to worry about finances seems absurd. Unless your idea of a comfortable life involves owning a luxury car, or renting a $2,000 a night suite. I live on what many here would consider to be an extremely low income, and the only thing I feel I'm really missing out on is desperately needed dental work, and even that would be measured in thousands of dollars, not millions.
I apologise if my comment sounds harsh or impolite. It is not intended to be. I'm just amazed that anybody would think they need $10 million to be comfortable.