I'm trying to understand how human knowledge is passed down from generation to generation without loss. Or loss occurs?
I believe that today is extremely rare that someone (a single person) can build a computer from scratch as before, because things became more and more complex.
Like @Anixx said in the comments: "More or less comprehensive knowledge exists only abouts the times when writing was invented...": The amount of written knowledge greatly increases every day. How someone that born in future will get all that knowledge, is impossible right?
Then we can fall into the situation of knowledge that were being written and read a few times and never to be read later in future.
How human did and continues to manage knowledge?
Today we are experiencing a boom of information and knowledge, every hour, every day. Imagine a child that will born in 50 years.
What is the flow of human knowledg?