Are you sure Aliens and Robots are more likely to attack us than it is for a volcano eruption to go haywire?
No. However an alien attack or a robot rebellion would be worse than a super eruption.
The chance of aliens destroying the Earth is very unlikly impossible. You also forgot nuclear war. We're also protected against solar flares and gamma rays. Robot rebellion is not a possibility. We programmed the robots. Remove everything on the list except for terrorisim, deep impact, global warming and nuclear war. Yellowstone might erupt, but only America would be destroyed.
Keep in mind that these are the top 10. Aliens got put in there probably because there was nothing else to put. Nuclear war would fall in the terrorist section. We are not protected againts giganitic solor flares and are certainly not protected againts gamma rays from two exploding stars. I also doubt that there will ever be a robot rebellion, but some people really think there will be. The super volcano eruption refers to all of the world's super volcanoes.
What do you mean by "doom"? The end of the human race? All life ends? The planet itself is destroyed?
The show meant that life would become harder and more hectic.
1. Terrorism destroying the whole Earth is crazy. Not everyone is under fire from the terrorists.
2. The deep impact is very unlikely. The closest thing to impacting us right now is 30 years away and the chances are slim.
3. Robot rebellion? Aliens? Have you proof of their existence?! Mabey there are aliens that want to be our friends!.
I know. I didn't make the list. I don't think a nuclear war will destroy the earth, but it could get really bad in the
future. If a deep impact did happen it would destroy all life. I believe that if aliens did find us they would want to be our friends. Remember I didn't make the list and these are the top 10, not 5.