Dotsies

How much better is it? It is significantly more horizontally condensed than normal fonts, letting about twice as much fall within the area of your field of vision that perceives fine detail. As to overall space efficiency in practice, the jury is still out. That won't be apparent until many people have spent time acclimating to it. (Think how you began with large letters when you learned to read,

[tmatsuu]

アルファベットを横1ドット縦5ドットに収めたフォント。省スペース。Unicode版つくってくれ。