> This is a very relatable feeling. I often find myself getting trapped into thinking about problems I am unlikely to solve. I have this problem as well. The m

> This is a very relatable feeling. I often find myself getting trapped into thinking about problems I am unlikely to solve. I have this problem as well. The most disturbing thing is retracing old paths to dead ends without realizing it. Here I mean internal mental models, but also applies to previously known results I just wasn't familiar with, and don't turn up unless specific phrases are known.