I thought the verse states it cannot be moved, not that it is immovable. That's two different things.
Psa 93:1 The LORD reigneth, he is clothed with majesty; the LORD is clothed with strength, wherewith he hath girded himself: the world also is stablished, that it cannot be moved.
Your trying to play word games.
מוט
môṭ
1) to totter, shake, slip
1a) (Qal) to totter, shake, slip
1b) (Niphal) to be shaken, be moved, be overthrown
1c) (Hiphil) to dislodge, let fall, drop
1d) (Hithpael) to be greatly shaken
A primitive root; to waver; by implication to slip, shake, fall: - be carried, cast, be out of course, be fallen in decay, X exceedingly, fall (-ing down), be (re-) moved, be ready shake, slide, slip.
The world will not fall or be moved or be overthrown by Satan because the Lord (Jesus) reigns supreme and will not allow it. There is no comet or meteor or sun burst or little green men coming...and just for the sake of arguement IF one of these things happens, when the dust clears the Lord, the living earth, and man will still be here.