So long as we're talking about time travel...

[finwitch]

No: HPFGUIDX 57740

"darrin" <bard7696 at a...> wrote:

> 
> When Harry and Hermione go back in time, they are standing in the 
> hospital wing. Dumbledore has just locked them in.
> 
> When Hermione turns the hourglass three times, they end up in the 
> Entrance Hall.
> 
> Now, JKR can create whatever rules she wants for her world, so long 
> as she's consistent within that world. She doesn't have to follow 
any 
> other established time travel fiction rules.
> 
> BUT... many of the classic Time Travel stories, such as the Time 
> Machine and Back to the Future, use the "change time, not place" 
> theory.

Earth is not as still as some of us might want to believe. It 
rotates - so that the place where you're now was a bit east just a 
while ago, a bit more 3 hours ago. Further, if you moved back in time 
for 6 months, but not place, you'd end up in empty space just 
opposite side of Earth's track around the Sun... and the Sun's not 
still, either, it's orbiting around the centre of the Milky Way 
Galaxy, and the Galaxy orbits arond the centre of Galaxy group etc... 
No, for time travel to be of any use, you *must* change place, too!

Then, we should also consider the matter of the moving Hogwarts. 
Stairs move(Harry & Ron were on them once they did that). Proffessor 
Binns, the slave of habit, comes out from the blackboard. I think he 
does that because the door was THERE when he was alive, and he's so 
much into the habit that he won't stop just because the door happened 
to move!

So, there's a bit of moving Hogwarts, a bit of choosing the place AND 
time, so that you don't startle anyone, you want to end up in an 
inhabited place where you're not seen...

-- Finwitch