The World's Smallest Legible Font
hasanabbas1987 writes "From the article: 'Well 'technically' they aren't the smallest fonts in the world as if they were you wouldn't be able to read even a single letter, but, you should be able to read the entire paragraph in the picture given above... we did. A Computer science professor called Ken Perlin designed these tiny fonts and you can fit 500 reasonable words in a resolution of 320 x 240 space. There are at the moment the smallest legible fonts in the world.'"
Skip the blogspam, go to the source: http://mrl.nyu.edu/~perlin/homepage2006/tinyfont/index.html
If the PNG on the Slashdot article is derived from the linked source article then I am concerned that it may not be representative of the actual research as the source article offers the image as a JPEG - which will almost certainly have degraded the image quality.
Did Ken Perlin not come through the 8-bit era? "Everybody knows" you can fit the entire English alphabet comfortably into a 3 pixel wide by 5 pixel high monospaced grid, it's been done hundreds of times. (Proportional can be even smaller, of course.)
If you check the original source, a e an o are distinguishable: http://mrl.nyu.edu/~perlin/homepage2006/tinyfont/index.html
One thing I've noticed while studying Japanese is that I need to use a larger font size when reading Japanese than I do when I'm reading English. The characters are just too complex to differentiate at small font sizes. You can't easily distinguish a character with N horizontal lines without the character being 2N-1 pixels tall (one for each stroke, and another for the gap between strokes). There are common characters with as many as 8 horizontal strokes (The kanji for "kaku" for example, which conveniently means to write). Even today's video games (on nintendo DS, for example) have 11x11 pixel Japanese fonts that can be very difficult to read.
Any reduction in font sizes for readability must have separate standards for Asian characters, or the more complex ones will just appear as blobs.
The problem is that these fonts are designed for LCD displays that are RGBRGB horizontally, not vertically. So rotating any display while using these fonts reduces the legibility due to the sub-pixel optimizations that have been done to make the font legible at it's size.
Try again. I bet somebody converted to jpg before converting back to png.