For example:
Will the sun die?
Will the moon be brought to contact with earth? (since it actually sinks about a millimeter every year)
What will happen to the universe?
Will Global Warming be too strong? what solution would you suggest if the earth goes underwater due to overflowed seas?
Anything you want to suggest about the really far ahead future, discuss here.
_________________
'One after one, by the star-dogged moon,
too quick for groan or sigh
Each turned his face with a ghastly pang,
and cursed me with his eye
Four times fifty living men,
and I heard nor sigh nor groan.
With heavy thump, a lifeless lump,
They dropped down, one by one'