When the next cohort of undergraduate students were born, Wikipedia had only just been founded [January 2001] and Google had been in existence for just over a decade [since 1998]. In their lifetime, the number of articles on Wikipedia has grown to nearly 6 million in the English language, which is equivalent to 2,500 print volumes of the Encyclopedia Britannica, and counting all language editions there are 48 million articles. When Leonardo Da Vinci was born in 1452, Johan Gutenberg had just published his first Bible using moveable type. By the time Leonardo Da Vinci was 20 years old, about 15 million books had been printed which was more than all of the scribes in Europe had produced in the previous 1500 years. Are these comparable explosions in the availability of knowledge? The proportion of the global population that is literate has changed dramatically from about 2%, when Leonardo was alive, to over 80% today which probably makes the arrival of the internet, Wikipedia and other online knowledge bases much more significant than the invention of the printing press.
Today what matters is not what you know but what you can do with the knowledge because access to the internet via your smart phone has made memorisation redundant.
Don’t forget the search facility. In the past you had to check all the libaries for a specific book. Now you can find information for every word in all the books, papers, magazines and webpages. It takes just minutes to find all the data for any kind of research. Leonardo da Vinci could not even dream over present day search facilities.