Lost as to the purpose of IPFS without authentication

While already impressive in terms of speed and ease of use i am lost to the purpose of IPFS.

If it is to offer files for fast delivery across the world, congratulations. I think of it as a much better bittorrent then which it really is already. Please advocate with major browsers to offer it as a default.

Unsurprisingly, event today, I do not see any documented approach to offering authenticated content. Assuming encrypted volumes will bring adequate authentication to the table is not exactly how people would expect authentication to work. I would prefer people to simply not know a file is even accessible.

I look forward to a way of isolating and sharing data, which i do not think of as a simple feat to attain. I’d like to learn more about how IPFS is addressing this functionality without creating notable botllenecks.