> Kids today arent going to know their eta from their gamma.
Are you saying kids will not be able to distinguish between the two symbols? I highly doubt that. They may not remember the names of the symbols, but emojis have the same problem.
Yes. You have to memorize the mapping between the meaning and arbitrary Greek letters whereas the meaning is more obvious with emoji. But both (greek letters, emoji) are bad solutions to a very stupid problem math has. See my comment here https://news.ycombinator.com/item?id=25207527
