> so they can be sure that neither are digital impersonations. They could be human impersonations though: https://xkcd.com/538/ https://xkcd.com/538/ That sa

> so they can be sure that neither are digital impersonations. They could be human impersonations though: https://xkcd.com/538/ https://xkcd.com/538/ That said the system is decent and require scary threat models to break it! But anyone using this system is already paranoid (not an insult... paranoid can be useful)