Since you asked -- I'm intelligent, but I also have an inherent ability to recognize patterns and estimate things which aren't always readily quantifiable. Also, as a fan of Sasha I've taken the time to think about her career, her various statements and actions and choices; I've read her book, kept up with what she's been up to and things she has said in interviews, and all of that painted a pretty clear picture. In addition, Sasha and I are somewhat similar in some aspects of personality, so in that way I CAN be inside her head, just a little bit. That sounds like crazy stalker material, but it's just the truth. Like Sasha I'm also a perfectionist, headstrong, introverted, rely more on natural ability than hard work, and have a tendency to psych myself out in competition and then kick myself over it, just to name a few.
Anyway, the bottom line has always been that Sasha wasn't finished. There were a couple times when I started to doubt it a little, based on one new piece of information or another, but upon subsequent reflection and looking again at the sum total of evidence, I wasn't concerned. She said it was one of her life goals to go to Worlds '09 and Olys '10. However, she ended up not going to LA Worlds or participating in the '08/09 season, and that continues to bug me, as I know it is really a big mistake for her. But if you look at her statements, it seems she has basically lost interest in anything but the Olympics itself, not even mentioning pursuit of the World gold that she is missing. That means that you could lay really good money that 2010 is truly the last we'll be seeing of Sasha in competition, unfortunately.
How she does in her final season, how her body holds up etc, no one really knows that. But I know something of what's in her head and heart, and that is to push for this last-minute, last-chance run at one more Olympics, just so she can be at peace with herself and will be able to look back and know that she at least tried. It's definitely not what I would have chosen for her, since missing the '08/'09 season could end up really haunting her, but I am quite hopeful that she will at least do a lot better than the haters claim.
If I could make one wish for the '09/'10 season, it would just be for Sasha to not find herself with a Nationals bronze, and missing out on her last Olympics because of a missing spot. (Though in a way I guess you could say it will have been the spot SHE didn't earn for herself, since she was too busy messing around with SoI before her time...)