I honestly don’t get the rage with functional programming. I find the hardest parts is GUI and user interactions, this is a place where storing state is natura

I honestly don’t get the rage with functional programming. I find the hardest parts is GUI and user interactions, this is a place where storing state is natural. Perhaps more on the server side functional programming is useful. Can somebody meaningfully explain to me why there is such a swell of interest in this field? Is it just all the ML and data scientists buzzing about an approach that is naturally suited to them or is there broader implications? I wouldn’t have guessed that everybody on HN was working on optimizing multi threaded applications or any of the other valid reasons to consider FP more generally.