Pixels of LCD monitors are usually composed of three stripes of the colors red, green, and blue. Tech enthusiast Matt Sarnoff used this property to his advantage when inventing a subpixel text encoding font. Its glyphs are comprised of colored strips only one pixel wide. But when viewed on LCD monitors, the color strips clearly form letters and numbers!

Fun fact: In 2013, I had a Twitter avatar containing millitext! Can you decipher it?