To me this is a bit absurd--if we're trying to replicate paper, maybe using a tree would be best? You can put the ink in the pen. I guess the advantage is you

To me this is a bit absurd--if we're trying to replicate paper, maybe using a tree would be best? You can put the ink in the pen. I guess the advantage is you can save many documents--but this is actually a disadvantage to me as I like having a physical copy I can splay out on my desk. Or even an entire wall covered with my designs.