time turner question - PoA

[ghinghapuss]

No: HPFGUIDX 88764

> Allie wrote:
> Okay, I know that this must have been discussed when PoA 
> came out, but I am having trouble with the archive search...  
> 
> When Harry, Hermione, and Sirius collapse fending off the 
> dementors around the lake, and Harry sees someone on the 
> opposite shore fire off a Patronus and chase the dementors 
> away, how could it be that he was seeing himself???  He and 
> Hermione HAD TO survive that attack without a "Harry from the 
> future," because if they didn't survive it, there would be 
no "Harry 
> from the future" to save them.  (I have this same issue with 
> Terminator 2... how can you get the idea for a microchip from the 
> microchip that you haven't invented yet?  But I digress...)  Since 
> he had to go through that experience before he and Hermione 
> went back in time... who created the Patronus the first time?
> 

Mandy here,
What you are talking about is called a Paradox and occurs in every 
story, book/movie about Time Travel. It is the main argument some 
scientist make about why Time Travel will always be impossible. Check 
out some Time Travel website for an explanation because it is way 
beyond my comprehension. ;-) 

Best not to think too much about it.

Mandy.