Earlier quoted context omitted.
For your example, sending one copy to space is better than sending three copies.
Not seeing how starlink can’t just put a hd and serve stuff.
Content-based indexing (as in IPFS) handles that. Plus the data gets cached in the starlink you locally accessed, in your example.
It might help to think about IPFS as a public CDN operating on an open specification protocol and an open-source implementation.