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Right, I think the key is learning something new in an area where you know the least. Even getting to know the simplest concepts can go a long way.

My favorite example: cropping a photo to improve composition. It's simple and easy to do, but it can have a comparatively large impact on a photo.

Learning more and more specialized tech can give diminishing returns.

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Yes that makes sense to an extent. The problem is that people were insisting on using MongoDB for problems better suited to a relational DB when it was faishionable, and now that decision lives on 6 years later.

Or I see a lot of CV's where people collect web frameworks - which essentially do the same thing. Yet whenever I inherit Django code, it seems to be done by someone with only the most basic knowledge of how to get things done.

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