Well, actually that’s correct, which is why there are various approaches to make it possible to trust an output of a computer program, verify it against that of other such computer programs, and so on.

But in my opinion the whole idea of voting sucks. It’s less democratic than sortition. With sortition minority positions are disadvantaged, but with most systems involving vote they are absolutely trumped (pun intended, though saying “harrised” would not be as far as I’d like).

Republics which used sortition have historically existed for very long spans of time. In Antiquity, in Middle Ages, during Renaissance. It’s harder to cheat with. Which also means it’s harder to sow distrust in.

And, well, humans are superstitious creatures and results of sortition are much more similar to how they see divine will.

Sortition is also more honest, it doesn’t abuse the human instinct of allowing politicians more than their rightful mandate when elected by a majority vote. When the reason a person holds some position is because a of a lucky die, the society looks at them more critically and they themselves know they won’t enter that river for a second time.