I didn't realize who this was by the title, but this is betaveros, the guy who won 1st place in Advent of Code every single year since 2019:
https://clist.by/account/32289/resource/adventofcode.com/
From the post:
> I think I predicted that requiring myself to use only Noulith on Advent of Code would make my median leaderboard performance better but my worst-case and average performances significantly worse. I don’t think my median performance improved, but my worst-case performance definitely got worse. Somehow it still didn’t matter and I placed top of the leaderboard anyway. (I will note that 2021’s second to fourth place all didn’t do 2022.)
(I also don't think it's unimaginable; lives change, everyone's going to have a point where they played one year and not the next, most obviously illness, but also life changes like marriage, kids, stressful new job, etc?)
One great golf on another younger great golfer that might catch up to him.