The network works even if people only seed during a download. Obviously, that’s less than ideal. For mobile, though, this is perfectly fine.
The point of IPFS is you can do an ‘airdrop’ without having to coordinate it. You lookup content by hash— If it’s available locally? Great! If not just get it from remote and add to cache. Simple as that.
That's a reasonable approach, but due to the synchronous requirement I guess the offload factor would be minimal. When I want to download something I might as well enable wifi and see if it's available locally. After I'm done there's really no incentive for me to keep seeding or even have wifi turned on.
> P2P networks like Bittorrent pride themselves on being available despite high churn, so this is right up their alley.
This really isn't applicable to opportunistic mobile use of IPFS, as you are unlikely to have a large enough local swarm to guarantee uptime or availability.
IPFS content is chunked, your swarm is lan+wan.
> That's a reasonable approach, but due to the synchronous requirement I guess the offload factor would be minimal.
A room full of people using their phones is what I have in mind. Remember, a node’s cache is not exclusive to just the content that’s being currently consumed. Anyway, the point was whatever’s the offload factor it would still be a net positive.
Also one can imagine if IPFS gets popular, just as ISPs collocate CDN caches in the present model, WiFi routers could come with a local node of their own. The “Web Accelerator.” And now we’re talking!
There’s opportunity for caching at many network levels, but there’s no incentive to do so with HTTP.
