Yeah but a ballot cannot potentially change the number of papers within it depending on who is looking and when they are looking. If your stupid mate from the p

Yeah but a ballot cannot potentially change the number of papers within it depending on who is looking and when they are looking. If your stupid mate from the pub questions the results he could literally look inside the box with a paper ballots and see if the votes are significantly wrong. If you let him guard the ballot box for the duration he could even see that nobody swapped the ballots. Try that with a computer. Paper ballots also having problems isn't an argument for even more complex systems, it is an argument against it.