A Face-palm for Sauron

[Inziladun]

Originally Posted by Boromir88

As far as Sauron recognizing his peril when Frodo reached Sammath Naur, that doesn't mean he knew that 2,000 years ago. What Sauron does figure out, is that he was 100% wrong about people not wanting to destroy the Ring. He always assumed the Ring's only threat would be if it was used against him, well if someone's taking it to the place where it can be destroyed, this proves Sauron was wrong, enter in doubt, concern, and fear that he could be wrong about the Ring in other ways too...not only now does someone want to destroy it, but mayber there is a powerful enough will to destroy it! (I'm only theorizing about Sauron's thoughts above, who can say for certain?)

It just doesn't ring true to me that Sauron put such a large portion of his power into the Ring without being fully aware what would happen were it to be destroyed.
The fear he felt when Frodo claimed the Ring so close to where it could be reduced to nothing had to have come from knowing how close he was to permanent disassociation from a corporeal form. What else would he have to fear? He was doing fine without the Ring from a military standpoint. It seems he could have easily won the war had the Ring remained hidden.