How could you lose it?
Cute live win.
"(exercise left for the reader)"
Hmmmm... 9.Na4, a fork? I don't think so... There's 9...Bxf2+, so 9.O-O is forced...
Maybe after 9.O-O Ne7, there's 10.Na4... And for sure Be3 is well marked as "??"...
If we use the idea you had in the game after 25 exf7+ Kh8 26 f8Q+ Rxf8 27 Rxa1 Rfb8, then White on his best day only has a perpetual with 28 Nf7+ Kg8 29 Nh6+ Kh8 etc. Where do you lose?
He he, I lose with my fear of Queen, with my bad handling of time pressure, I can lose when I see that I'm actually better with 3 passed pawns and start playing without thinking...
You could not imagine all the ways I could find to lose that game...
You are talking about ghosts, wich is common. Nimzowitsch said that a threat was stronger than the actual execution. The game though - Black is never losing.
I like that, I like that saying very much. I will never forget a game I lost vs. Gil (Pardalsem Casa), when he played a move that could be easily defended with 3-4 different moves, but the lone threat of 3 pieces around my King, made me play 3 bad moves, each one worse than the last one and I defeated my self.
Good advice for most players is not to play vs. rating or player in front of them, but to play vs. board and moves on it. But on the other hand, and I think that Lasker said that, you do not play only board, you DO play vs person who is moving the pieces. You are playing vs. his weaknesses and strengths.
I once played a guy who could not defend a back rank mate if his life was depending on it. And I played objectively weaker moves only to create chance for back rank mate. And I won with back rank mate 5 games in a row.
Other friend I have is completely unable to see any threat that masked pieces could create.
It's possible to play the player only if you know him/her. Lasker was talking about the top level players of his time, whom he knew well. In fast games, I mostly play 2 1, there is always a lot of mistakes, so the only way to go is forward:
I like that, I like that saying very much. I will never forget a game I lost vs. Gil (Pardalsem Casa), when he played a move that could be easily defended with 3-4 different moves, but the lone threat of 3 pieces around my King, made me play 3 bad moves, each one worse than the last one and I defeated my self.
"Threat is stronger than execution"... Great to have it in mind...
Poor Mr. Antibiotics... I hope he can overcome his trauma...

Updated with Fritz 12 annotations. Now I see how I could lose that game, or at least make it much more difficult for me...