To many people, the word "pornography" does not carry the positive connotations you seem to think it has.
Sure, except for the cost of building a completely new infrastructure to produce, transport and store hydrogen.
You mean something like a
I think your diagram might be misleading for the Germans' particular use case.
Presumably, the transport/transfer phase here is where the hydrogen is taken to some kind of "filling station" where fuel cell vehicles will be fitted with fuel cells. It seems to me you can cut out some of these steps/losses when the vehicle you're filling up with hydrogen is itself a train, which is more than powerful enough to transport large volume of hydrogen all by itself. Build a line out to the the electrolysis plant and the hyrdrogen never even needs to leave the railway system.
Furthermore, I haven't bothered to read TFA but the hydrogen train designs I've read about do have batteries, so they are not exempt from the efficiencies of regenerative braking.
There is no compelling interest in keeping plans for primitive 3D printed guns away from anyway, and there is no possible argument that there is.
My read is that the argument is a "slippery slope" one. The lawsuit was intentionally filed with the aim of setting a legal precedent that could potentially apply to other, less primitive weapons.
And on the seventh day, He exited from append mode.