> There are many multiparadigm languages. They are even the norm now. But being multiparadigm doesn't mean they all support all paradigms equally.

Mozart/Oz and CTM are obligatory reading to understand the topic of supporting multiple paradigms: https://www.info.ucl.ac.be/~pvr/VanRoyChapter.pdf

Oz is among the few languages where all paradigms are equal. A great HN discussion about the above link: https://news.ycombinator.com/item?id=18381640