>Even "the tech" can have some understanding of finite precision integers and floats, and how they behave, given they're building blocks of the trade. I do hav

>Even "the tech" can have some understanding of finite precision integers and floats, and how they behave, given they're building blocks of the trade. I do have "some understanding". But not enough to processing millions of records and notice that one or two numbers of output, out of hundreds, aren't correct. That's the PhD's job.