A painting is never finished. You just stop working on it.” This idea will be familiar to anyone who has worked on software. - Paul Graham

Architects know that some kinds of design problems are more personal than others. One of the cleanest, most abstract design problems is designing bridges. There your job is largely a matter of spanning a given distance with the least material. The other end of the spectrum is designing chairs. Chair designers have to spend their time thinking about human butts.

There are plenty of other ways to get money, including chance, speculation, marriage, inheritance, theft, extortion, fraud, monopoly, graft, lobbying, counterfeiting, and prospecting. Most of the greatest fortunes have probably involved several of these.

If you invested at the peak of the Nasdaq in March 2000, it would have been roughly 18 years before you were whole again: 15 years before the index reached the same point, plus another 3 for inflation.