I think the issue here is input methods. Ω isn't so bad (option-z on my Mac) but there's really only a few dozen additional symbols available via such relativel

I think the issue here is input methods. Ω isn't so bad (option-z on my Mac) but there's really only a few dozen additional symbols available via such relatively easy shortcuts: mostly accented characters, Greek letters and punctuation. As a Smalltalk hacker I'd like to use ← for assignment, and ↑ for return, but AFAIK the only way to enter them is via the CharacterViewer utility. It might be easier on Windows or Linux, but I doubt it. Alt+8592 or whatever is still going to be too difficult to type frequently. Mr. Kamp slags syntax designers as putting compatibility with the ASR-33 above expressiveness, but I dont' see a way around it with today's standard hardware.