Comment by johnp271

There is a nice 10 minute discussion about this paper by physicist Sabine Hossenfelder on her "Science without the gobbelydgook" youtube series (which I recommend). She considers the existential questions regarding necessity of complex numbers a "super-niche nerd fight". You can find the video here https://www.youtube.com/watch?v=ALc8CBYOfkw&t=78s.