Yes it's critical for democracy that the mechanism can be not only understood by a layman but verified by a layman. I'm sure we can make a system that experts

Yes it's critical for democracy that the mechanism can be not only understood by a layman but verified by a layman. I'm sure we can make a system that experts believe is safe. But it's the voter that has to believe and it's unreasonable to ask them to be experts. If you lose the voter, democracy cannot function.