Dotsies: a font that radically compresses text into the minimum possible number of pixels

Dotsies is a font that uses dots instead of letters: in effect, a substitution cipher using the minimum possible number of pixels to legibly (once you've learned it) represent the Latin alphabet. For example, the pictured text decodes to this:

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. — Read the rest