- What is the potential that later on someone will start using h[a~e], or perhaps h[aŮe]! (say, to indicate an a-coloured laryngeal that in a certain context has become e-coloured)?
Of course such a question cannot be answered. There are billions of people on our planet.
- If such usage should arise, how would our decision to encode [/] affect how we decide about [�] or [Ů]?
Ignores that parentheses and hyphens are already encoded as subscripts.
The point is, we don't (or, at least, shouldn't) just encode things because we saw them being used. We should establish principles (however formally or informally stated) that we use to guide our decisions. *That* is why Ken cares about a possible subscript tilde.
The boundary is what people need to encode, not whether it fits in with one particular linguist's view of what merits veto.
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Michael Everson * * Everson Typography * * http://www.evertype.com
