Quote Originally Posted by Ryushikaze View Post
Forgive the bluntness, but smeg your opinion. Evidence is what matters. So, thus, to your statement of surface destroying, I ask A: Over how long a time, and B: To what level destruction, and C: Where's your proof?
A) We don't know, because Cloud deffeated him, and Aerith destroyed his will(with her holly rain) before he could end the process.

B) He would at least kill all life in the planet, and transform the planet in a "space ship" to travell the cosmos.

C) "On a Way to a Smile" show to us that the pure Lifestream have a great power of destruction(hell, just look at what the Junon Mako(pure Lifestream) Cannon can do in the game). And remember that all magic power of destruction(Materias) is pure Lifestream condensed.
The corrupted Lifestream was more powerfull than the pure one.

The Lifestream is like the Statues of FFVI. All magic and life exist because of it. Who have controll over it, is a god. Sephiroth has controll over it in AC, so, he is a god. Is very simple.