Merlin, if you had, say, 500 messages on here and goofed up twice, I might worry, but 2 out of 15,3030, not so much! And this kind of occasional inattention to detail wasn't exactly the kind of error that's symptomatic of dementia.

of it
And we'll be driving
at least until our power train warranties expire, right?
Thanks for the reassurance.
It was the nature of the goof, inside my head, that added to the worry.
It wasn't as bad of a slip as this one (clear back in April, 2016):


You can see that this is the same townscape gaming table viewed from opposite ends. It was on my gaming table for many months. I looked at those (and many other pics of it) for well over a year before I suddenly realized, with something like horror, that it was
backwards. There was no way that I took this pic ...

... from the cramped bookcase end: I distinctly hold, still, an empirically clear memory of how I knelt down on one knee and held my camera against the table to view the main street through the gate: which is IMPOSSIBLE from the bookcase end: the doorway end of the table is open and I can still see myself kneeling to take the closeup pics. But, it never happened that way. I still say to myself, "I remember setting up the table the other way around." That's how it feels and without picture proof that I am wrong, I would swear on my life that the table ran the opposite way than it does in the pics. We played a game lasting hours, and I remember where I sat and how I interfaced with the main town square, and it was at the opposite end: except that it wasn't.
Lesson learned: I can no longer trust what I remember and since then I no longer offer my version of things unless asked: and then I always give the caveat: "Human memory is a fallible device, and not something that one should pay too much attention to". That is one of the truest pieces of wisdom uttered by man (Roger Waters, in fact; I've shared it here a number of times before). And then it just gets worse: happens more often: and at what point do we say to the world at large: "I am sorry, but you cannot rely on anything that I say; accuracy is not a gift that I own." Hah.
The only possible corrective is to keep a diary and take pics often. You'll have to trust the illustrated "paper brain" and not what your physical brain tells you, if there is any conflict of interests at some future date.
(Now, is this thread thoroughly derailed or what?)