[qayxc]

> Let's make it untyped so you have to parse everything manually just to interpret it

Isn't that exactly how traditional FS work anyway? Even using MIME types only gives you an optional, non-binding hint. In the end you need to parse and interpret the content "manually" (well, usually using libraries).

[infogulch]

Maybe I could have organized my comment to be more clear. You missed the important part in your quote:

> parse everything manually just to interpret it: not so great.

Except the first sentence, the first paragraph describes current filesystem design.