YANGI

復活記念リンクということで。

This doesn't mean you should avoid building flexibility into your code. It means you shouldn't overengineer something based on what you think you might need later on.

(超訳)

柔軟にするのはいいことだけど、悩みすぎるのはよくない。特に、今の自分に見える範囲だけで悩みすぎてはいけない。