Continuing the discussion from Add new character entity references like &power; - to match new Unicode specs:
Rather than inventing yet more named entities (with arbitrary names) to HTML, I think this would be a great forward-facing way to allow for semantic referencing of Unicode characters using plain ASCII source - just drop all the Unicode character names into the routine for looking up a named entity (after comparing against the “legacy” entity names). As an alternative to quotes in the entity name, it might be permissible to allow underscores in the identifier, per section 4.8 of the Unicode standard, eg &ohm_sign;
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