A song of Ice and fire discussion (spoilers incl A Dance with Dragons)

[Nuytsia]

I was interested to read GRRM's blog entry on the final of Suvudu cage match, where he indicates that Rand couldn't draw on his power past a certain point due to no more being available in that part of the world at that time, and the indication that some parts of Westeros have more latent magic than others.
I know this was just a write up for fun, but if it's 'true', would that have something to do with the different degrees of success which occur when magical type things are attempted?

I'm thinking of Melisandre trying to create/conjure dragons.......whereas..... Dany's dragon eggs actually hatching .....

Re Maulkin's post, I guess this would be assuming the Lord of Light *doesn't* exist .....

On a separate topic re Suvudu comments by GRRM - he had Jaime mention including the Hound in those fighting with him. Does that mean GRRM is admitting he's not dead? (or did I miss something and what that already admitted in FFC?)