Nor is there a way for the voter to verify that the machine itself is what it's supposed to be. Now, if the hardware instead 1) could be provided by the voter

Nor is there a way for the voter to verify that the machine itself is what it's supposed to be. Now, if the hardware instead 1) could be provided by the voters themselves, 2) was easily auditable 3) was used in their daily lives providing a ubiquitous understanding of the technology involved only THEN would it be appropriate for use in elections. So far, only pen and paper fulfils all of those criteria.