> What do the next 4000 emoji look like?
They probably look like this: □ □ □ □ □ □ …
They probably look like this: □ □ □ □ □ □ …
IIRC some earlier version of UTC 51 explicitly stated that the implementations of a particular version of Unicode absolutely should not try to show any sequences, not mentioned in the emoji-sequences.txt and emoji-zwj-sequences.txt, as a single glyph and must treat them as distinct graphemes. It apparently has been removed in the recent years so there is apparently now absolutely no guarantee of what visuals and when exactly you can expect.