[brendoelfrendo]

Yes, and it's incredible how many problems are solved by hand-counted paper ballots. I get that it's a big task, that it takes time (and some US administrations seem to despise not knowing election results the night of the election), and that it's very tempting to automate, but the basic formula of 1) everyone gets a paper ballot; 2) the ballots are collected at a polling station; 3) the ballots are counted by hand is much harder to corrupt. Maybe build the fancy stuff on top of the paper ballot, like serialized ballots to prevent duplication or timed locks on ballot boxes to prevent tampering, but for the love of Democracy, keep it simple!

[fabian2k]

Other countries get preliminary election results the same day even with hand-counted paper ballots. So even that isn't impossible.

[vlovich123]

You can also use statistical techniques to audit results that are for the most part automatically tabulated by machine.

[0x457]

Some stakes couldn't start counting mail-in ballots before the election day. That slowed down counting a lot.

[arrozconcosas]

Mail in ballots are even less secure

[horacemorace]

Source?