[clueless404]

> Assuming everyone has 8GB of cache space on their phones

That feels optimistic. I doubt people have that much free space on their phones, especially those that don't have flash cards. Heck, a basic iPhone won't have. Even a 16GB model has something like only 12 GB free when it's empty.

> For such a mesh network, you don't even necessarily need to connect over WiFi - lower energy Bluetooth could be used too.

IPFS doesn't (currently) work over Bluetooth.

However, my main point is, that I don't think most people would be altruistic enough to participate unless they could plug in their phones on the plane.