Technically. I guess what I’m getting at is these are separate use cases that happen to be served by the same data structure in some languages, and “tuple” to me refers to the much less important/powerful use case, which is why I didn’t realize what the term referred to when I first heard about this proposal.

For instance: Rust has tuples that are fixed-length heterogenous sequences, but you can’t actually work with them as sequences in any meaningful way; you can’t map or loop or filter over them. The term “tuple”, to my mind, refers to that “multivalue” or “unlabeled-struct” kind of use case. The fact that we use arrays for that in JS always seemed to me like a historical accident/convenience.