I think a human can and will misread votes, but 2 humans? 5 humans? 20 humans? The more contentious the voting is, the more people can gather around and count

I think a human can and will misread votes, but 2 humans? 5 humans? 20 humans? The more contentious the voting is, the more people can gather around and count along. And there isn't really a limit to how many can be a part of it, if it grows to be too large, additional work can be done to accommodate the extra people. Counting will take longer, but it will be that much more secure. Hell, go ahead and throw a counting machine on there as well, but don't rely on it, and don't have it be the single source of truth, or only use humans in case of a "recount" or something.