> And we should not be duped into believing the technology exists to be "fully auditable and transparent, yet completely anonymous". It does not and it probably cannot exist.

It has existed for several years. Paper optical scan ballots, augmented by some printing using a special ink and a special marker used to mark them when voting, with some clever cryptography going into what to print on the ballots with that special ink.

See:

https://www.usenix.org/legacy/event/evt08/tech/full_papers/c...

https://eprint.iacr.org/2010/502.pdf