I am disenchanted with "guru level" work in a language. The old saying about "if I'm just barely smart enough to write the code, I'm not smart enough to debug i

I am disenchanted with "guru level" work in a language. The old saying about "if I'm just barely smart enough to write the code, I'm not smart enough to debug it" is true immediately, and then even more true if there's a 3-6 month delay. I appreciate being back in a language long enough to not have to look things up all the time, but the dialect of all of them I write in gets simpler and simpler over time. Portable guru knowledge like "I know how to write an interpreter/compiler" and "I know that for this task there must be a library in $LANGUAGE" and "I know that language construct/function call looks simple but it has to be an O(n^2) algorithm for it to be doing what it says its doing" is much more useful.