The message is the medium

Miners are publishers, the blockchain a notebook, bitcoins ink

The blockchain is an “open-access book (the blockchain) of publications, and bitcoin is the ink with which the blockchain is written” and “Because the nature of bitcoin is a publication tool, the nomenclature could be forked to call the components the “notebook” (blockchain), “ink” (bitcoin) […] and “publishers” (miners) without any of these terms being misnomers.”

I love how the DFS Office of General Counsel in NY tried to explain what Bitcoin is, in October 2014.