The most profound thing that the internet can do for the world is create a single monolithic repository of documents that is designed to take a dedicated reader from basic principles of math to a high degree of understanding in any subject. This is such an easy task compared to all of the other projects that happen on the internet, it is astonishing that we don't have anything like it yet. Wikipedia comes close. Khan Academy might become what I just described after they add more content. But nothing really hits the nail on the head yet. If Facebook spent a few billion on it then we would have it. It's so fucking simple. I would trade in Instagram many, many times over in exchange for such a repository. It is one of the easiest things to do and out of all the things we could do has the greatest impact on society and yet it has not been done. Amazing.