Voldemort, the Prophecy and the HBP

[pippin_999]

No: HPFGUIDX 110210

My guess is that the Half Blood Prince isn't a real person. He's a 
legend, like the Heir of Slytherin was before Riddle decided that 
the Heir of Slytherin was him. Perhaps the HBP is the promised 
savior of the WW or something like that, and it is because 
Voldemort *thought* that Harry might be the HBP that LV went 
after Harry rather than Neville.  I think Harry might be tempted to 
assume the title of HBP as Tom was tempted to become the 
Heir of Slytherin.

Now on to the prophecy, the only way it makes sense to me, and 
then, like most riddles, it becomes absurdly simple, is if the 
"other" is a third party. 

Suppose  the Other is  a demon possessor of Riddle. As we 
know, Tom has done something to himself so that he can't die. 
People have been assuming that the possession is the reason, 
but that can't be right, because possession is usually fatal. 

Rather, I think Tom was possessed first, after he entered the 
chamber (thus the red glint in the eyes of Riddle) and he isn't 
dead because one of those dangerous transformations he went 
through prevents him from dying. Then we can read the prophecy 
this way:

Either [Tom or Harry] must die at the hand of the other [demon] 
for neither [Tom nor Harry] can live if the other[demon] survives. 

My guess is, Harry has to render Voldemort killable,  so that 
Voldemort, like Quirrell,  will die when his possessor  abandons 
him. But Harry must not kill Voldemort himself. Rather he must 
find a way to destroy or banish the demon.

Pippin