"How many people are crap at something, realise they can get along without it, and thereby conclude that it's useless? Most. It's like being incompetent and una

"How many people are crap at something, realise they can get along without it, and thereby conclude that it's useless? Most. It's like being incompetent and unaware of it. It's an unknown unknown." The reverse is also true. If you know a lot of math, you don't really know how you might have gotten along as a programmer without it. You might know that you would have struggled at the mathy programming you have done, but you wouldn't necessarily know if you would have excelled at other kinds of programming despite a lack of math depth.