[steggy]

[ QUOTE ]
[ QUOTE ]
Serious discussion today folks. Your options are

Mass terrorist attack/nukes
Global warming
Gigantic natural disaster ie massive earthquake/meteor/hurricane
Sun Burns out
Alien attack
Other

Please discuss which option you think it most likely to end our planet.

[/ QUOTE ]


The Yellowstone Caldera is the biggest near-term threat to life, though it's unlikely to extinguish all life.

The biggest extinction threat medium-term is robots.

The biggest long-term threat is a close proximity supernova.

[/ QUOTE ]


I like this Yellowstone one. Didn't even enter my mind.

I'd like to hear some more thoughts on the robot thing.