A "qruine" if you will :)
Design a QR code that legibly spells with its pixels (or the space between them) the text that it scans to.
For example, this QR code scans to the letter A, and also spells out A in white:
There are 4 categories, one for each mode of QR code: numeric, alphanumeric, byte, and kanji. Please state which category your submission is for.
In order to prevent trivial solutions like "------------", in all categories except numeric mode the text must be coherent in a natural language. (In numeric mode the winner will be a large number of 1s, obviously.)
Your score is 2l ÷ h, where l is the length of the text and h is the width of the QR code in QR dots (not necessarily the same as screen pixels). Highest score in each category wins. The score of the sample QR code is (2*1 character / 97 dots wide) = 0.02.