Creating the concept is hard. But not harder or less hard than inventing the press.

However, alone, you CAN make rope. It's painful, but you can.

You can't invent the press alone. You need ink, paper, metal, and people being able to put it in shape for you.

Everybody had access to plants to make rope. Not everybody had access to the money, education, market and knowledge necessary to invest the press.

Now today, it's even worst.