Closing arguments are over, and now we await the court’s decision.
@HarriHursti explained how poor quality scans and arbitrary thresholds combine to leave votes uncounted.
I shared my experience on the Vote Review Panel, helping overcome the limits of technology.

People are asking whether it’s safe to use a mail ballot, given the scan problems.
Absolutely yes, and here’s why:
Your hand marked paper ballot is your vote. It can be audited, and counted by hand. You don’t need to verify a ballot you marked yourself. Your vote will count.

Contrast that with the ballot summary from a ballot marking tablet. Evidence proves it may not represent your vote, whether by bad programming or by malware. Most of us can’t and don’t check them, and there isn’t much to be done if we find an error. Audits are meaningless.

Think this is theory? In Walton County, a race on the proof and printed ballot disappeared from the BMD, because of one wrong setting. In Tatnall County, of 50 Rep primary ballots, 39 were counted for Dem candidates. Programming error.

The evidence presented to the court is incontrovertible. As long as we keep these computers between a voter and her ballot, we cannot trust that outcomes are correct. Scanner performance can be improved. Backup paper poll books can speed up checkin.

But if we want secure elections with outcomes we can trust, we must replace the ballot marking devices with pens, and implement robust audits.
Thanks to @philipbstark , @HarriHursti , @jhalderm , @kskoglund for your clear testimony.