I classify people into three categories. Poor: They want enough money to survive until the next paycheck, whether it's tomorrow or next month. Middle class: T

I classify people into three categories. Poor: They want enough money to survive until the next paycheck, whether it's tomorrow or next month. Middle class: They want enough money to survive their whole lives (retirement). Rich: They want enough to do their projects, which presumably give them more money, and lets them do bigger projects. The mindset of all these groups seem drastically different. Some people look at the poor person and wonder why they risk their lives and health all the time, but many of them don't even expect to live that long. Some look at the rich guy and wonder why he builds space companies when people on Earth are starving. There's also lower/higher variations. Like many people who are mentally in the rich group don't buy houses or save up for retirement. They often have less savings/assets than an equivalent middle class person, but the difference in ambition means they end up rich or broke. Likewise many poor people will spend excessively on food but be wasteful in things like health or maintenance which may cost them a lot later. I think suicides also most commonly occur when someone drops a class. Someone rich finding out that they need to work, or someone middle class who has to dip deep into their retirement funds.