As someone who has written a considerable amount of Forth as a hobbyist, studied APL, and been paid to write K, it's fascinating to me how aesthetically similar the Forth and APL communities are, despite their languages approaching minimalism from completely different sides of the spectrum. I definitely credit learning to read Forth as helping to open my mind to the unconventionality of APLs. Spend enough time out there on the edge and you don't get as hung up on whether syntax resembles C or is "unreadable".