Exactly. It's definitely possible, but something like this needs great amount of coordination and money. I've once read something about Remote Direct Memory Ac

Exactly. It's definitely possible, but something like this needs great amount of coordination and money. I've once read something about Remote Direct Memory Access, it allows one to completely bypass the kernel, CPU, cache, and stream data directly to the network adapter of another computer - you break a lot of essential abstractions of modern computer system, meanwhile still be able to provide a consistent and usable infrastructure. Its security equivalent (something allows low-level control of the protected data) is unlikely to happen, except for DRM, I guess.