J
JCheck
Guest
A few examples in order from my opinion of most likely to least.
1. A.I. Takeover
2. Globar warming or Global Climate shift
3. Global viral killer
4. Gamma Ray burst
5. Meteor
6. Roaming black hole
7.2012 lol
8. Economic failure
9. Magnet Field collapse
10. THE SUN!
1. A.I. Takeover
2. Globar warming or Global Climate shift
3. Global viral killer
4. Gamma Ray burst
5. Meteor
6. Roaming black hole
7.2012 lol
8. Economic failure
9. Magnet Field collapse
10. THE SUN!