The implication is, of course, that there isn’t a good one. This isn’t ruby the language’s fault, it’s just weird that after like 15 years being the go-to tool for VCs there’s no substantial investment in the core infrastructure.

We just gotta wait for banking software to be written in it, I guess, so there’s a vested interest in it over the long term.

Edit: I’d like to further note that other languages use similar features (string-keyed functions) but they aren’t typically put into high performance code/are seen as a hack around formally definitions (possible exception: common lisp, although I would expect a macro). This is inherently a readability improvement over manually defining the methods you use.