>Humans are actually quite bad at hand-tallying hundreds of millions of datapoints. Humans just need to be able to separate a few hundreds of ballots into a co

>Humans are actually quite bad at hand-tallying hundreds of millions of datapoints. Humans just need to be able to separate a few hundreds of ballots into a couple of piles. When introducing double checking this makes an incredibly rigorous process, which can be open to the public. This is the case here in Germany. Everything after that can be done by computers as all the data after that is published.