"most developers aren't hedge-fund traders, auto mechanics, laywers, hotel managers, etc. yet somehow people manage to build specialized software for those fiel

"most developers aren't hedge-fund traders, auto mechanics, laywers, hotel managers, etc. yet somehow people manage to build specialized software for those fields. " But imagine how much better the software will be when the developers know as much as hedge-fund traders, auto mechanics, etc. If you look at a book like Martin Fowler's Analysis Patterns, you realize that a deep understanding of the domain is crucial to building a good model to support it.