[TheFiend7]

Honestly I feel as though that's one of the most incredible aspects of theoretical physics I've seen. The fact that often times these underlying physics are danced around and even though they're unknown, we can tell something is not quite right.

I believe this guy even talks about it a bit in this video made by the Royal Institution (which I really enjoy watching), discussing the possibility of different fundamental building blocks of nature. https://www.youtube.com/watch?v=zNVQfWC_evg