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, e

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 https://news.ycombinator.com/item?id=25207527