Spending a day staring at rust compiler error messages in complete confusion and actually successfully working through them and internalising what I've been doing wrong and it changing from a generalised sense of frustration to one of me actually feeling like I'm past dealing with the language and am instead dealing with the logic of the problem I'm trying to solve is… ok I've had a *lot* of practice in the past 30 years but this took me *way* longer in C