PoA plot does not work

[arielock2001]

No: HPFGUIDX 93083

I have been holding on to this for quite a while, but I am curious 
as to what you all think...

Regarding the time turner in PoA,   johnbowman19 wrote: 
"This is how it is told, but it could not have happened this way. 
How could Harry see himself, when he had not gone back in 
time yet? It is impossible."


Arianna hedges:
   While it is hard to explain, I don't think that there is "time
travel" 
in this book.   I think the time turner does not "send someone 
back in time."  I think it creates a Doppelganger (or a 
DoppelGranger in this case) of the person using the time turner.  
There is no "first time", all the events only happened once.   I 
believe we are told that a time turner cannot be used to change 
past events, not "should not," but "cannot."     When Hermione 
realizes that she had fallen asleep and missed Charms class, 
she did not even consider going back in time to attend the class.  
This is because she knew that she literally could not, it had 
already happened, she was not there.  

In folklore, a person with a Doppelganger (Hermione1 and 
Harry1) would not be aware of it's presence, only the 
Doppelganger (Hermione2 and Harry2) would know of the 
anomaly.   During the middle ages, persons believed to have 
Doppelganger were candidates for sainthood.

It also makes me wonder, if Lupin *did* see 2 Harrys and 
Hermiones on the map, maybe that explains why he was 
dragging the discussion in the Shrieking Shack on for so long: it 
told him that at some point, something was going to go very, very 
WRONG.

http://www.themystica.com/mystica/articles/d/dopprlganger.html

http://webhome.idirect.com/~donlong/monsters/Html/Doppelga.
htm

I do hope this makes sense,
Arianna