Interesting notion.i can certainly see that applying to me.

I'm a digital marketer and I love love love going deep on analytics, attribution, etc. as a part of that. However I wasn't even aware of half that stuff when I was first starting out.

Professional experience led to greater and deeper exposure of new areas of the discipline that were way more interesting to me than the fundamentals that first got me interested. I now engage in discussions on those topics with other professionals in my spare time because it interests me beyond my job.