> I see parallels between the debate about typed vs. non-typed errors and the debate of static typing vs. dynamic typing in programming languages.

Author of the post here. I also see this parallel in error handling discussions. But seems like it's much harder to sell error handling than static typing. Static typing was also much more debatable in the past then now so maybe same can happen to error handling mechanisms in the future as well.

Your project seems very interesting! Typescript is sophisticated enough to model complex Result-like types that can narrow-widen error cases throughout the code. I will check it more if I find the time.