Imagine a world in which every single person on the planet is given free access to the sum of all human knowledge. That's what we are doing, said Jimmy Wales, the founder of Wikipedia, while delivering an eagerly awaited keynote address to mark the beginning of the third day of the conference. He went on to detail the global nature of Wikipedia by citing a few figures. English language has more than 2.5 million articles. German, French, Italian and Japanese have around half a million articles each.