It wasn’t too long ago that other developers not knowing the things I know was really frustrating. “How could they not know this?!” I thought that I didn’t have time nor should I be expected to train other developers. If I could learn all this stuff, they can too.
At some point, my perspective on this did a complete turnaround. Now I’m eager to teach other developers things I don’t know. The major benefit is, now they know the things I know! A side benefit is now I know the thing better because I had to teach it.
I was completely wrong when I thought I didn’t have time to teach. Turns out, I don’t have time to not teach other developers the things I think are important.