If your toaster is automatic beyond belief, you should be in awe but not afraid, for this alien technology bestowed upon us by the ancients is benevolent and incorruptible.
But a modern toaster? That could kill you in your sleep!
So you're basically saying it's a cosmic entity from galaxies away that has been lurking for aeons in the empty shadows of space, thirsting for sentient life, and it has been attracted in our vicinity by our foolish experiments, gotcha.
It's just a creative way to express a fantasy, in actual fact circuits left running that long in outter space that has random electron radiation passing through it is bound to degrade over time...
Call me when I don't have to go to work the next day, until then I'm too poor to care about alien messages. Come here and solve my problems or shut up.
Yes, ram has little tiny switches that flip horizontal or vertical, to reflect a 1 or 0, and those can wear down over time. Crappy ram dies in a few years or less, some last for decades.
just release the voyager technobabble to the internet, some space and comp sci nerd somewhere, or 300, because realistically, it's going to be a bunch of people will decode it and figure out exactly what the hardware problem is. Within a few months.
of course nasa figures it out, i would venture to say it's probably the being in space for the period of about 50 years aspect of it, that had something to do with it.
There is NO brain inside voyager 1 that will be turned back into a normal human by an alien race and then come up with a fairy tale that really is a coded message that surreptitiously describes advanced alien technology though symbolism.