I came across this interesting article titled No One Knows What the F*** They're Doing  by Steve Schwartz. Interesting in the sense that I've been feeling like a fraud, and this article says exactly why.

I thought the article was so good, I sent it to the entire department I worked in.

I had recently managed to hack the Java framework of the department, and a colleague had sent me an IM message, urging me to keep doing what I do and praise me. I felt like a fraud because I know there are a lot of stuff I don't know. In my younger years, I felt damn smart because of what I think I know.

Nowadays, I feel slightly less apprehensive that I still don't know a lot of stuff, and I'm somewhat okay with it.