> With paper and pencil, what happens if a mark got erased? If the circle is half filled? If the circle is quarter filled? All of these are questions that will

> With paper and pencil, what happens if a mark got erased? If the circle is half filled? If the circle is quarter filled? All of these are questions that will be the subject of lawsuits in a mix of jurisdictions. Votes are counted by humans. It's not "fill a circle", it's "draw an X in a box". It's not ambiguous.