What has changed in the life of documents living in files and folders v/s Google drive, Box, Dropbox etc?

Once upon a time, there were docs.
They carried information and lived chained inside of files and folders, most often attachments.
Several versions of the same information were exchanged bet teams via emails.
Then came Dropbox, Google Drive, Box, and others.

So what changed?

Life of 'information' starts from living within the boundaries of a file within a folder. Doesn't matter the format, Word / PDF / PPT etc. Much like paper in a book stacked on a Library shelf. If you were to keep a piece of paper in 2 places you need to copy them and stack them in different places. Isn't it how today's files are stored in our drives. V1.1 , V1.2 and so on ?? What if there was a different way of storing that information without having the need for copying and pasting and creating several different versions? We at Qinaps are solving this by arranging information into sections / blocks. We believe in building knowledge bases rather than documents. Docs can be delivered by simply chosing the required blocks to create a table of content.