“...a software engineer can create...”
I wonder that, if they can do all those algorithms and back door things, they could also make all of their corrupt “engineering magically disappear”, at a point after votes are officially recorded, and the system “cleansed” leaving no traces? I can imagine all kinds of nefarious things, but not being a software engineer/not having such a background, I don’t know what’s even possible in that invisible realm.
Are we imagining too much here in trying to rationalize what happened? Black helicopter stuff? I honestly don’t know. This is way beyond my pay-grade and level of expertise. Somehow, the numbers vs 2008, just don’t add-up rationally.
Plenty of software engineers post and lurk here, so they can offer their input.
On the consumer side, you have probably installed software on your PC. The Windows OS has an "uninstall" program that is supposed to remove traces of the installed program. Maybe something like this was used.