[Grace-core] Parsing ambiguity

[Lex Spoon]

It's a good point that you can reduce the strain on operators by using more
identifiers.

Not mentioned on this thread so far is the case for 7-bit ASCII. If legal
programs can have a wider range of input characters, it helps some things,
but it opens up problems of its own:

1. Users have to customize their keyboards.
2. Users have to debug their fonts for a variety of programs.
3. Homoglyhs. Bob types a Cyrillic "A", and Mary types an good old Latin
"A". Hilarious error messages ensue.
4. Fear. Hate. Macros! Okay, not really.

Lex
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