The volcano in Yellowstone park.

[thir]

Thank you both.

A daunting prospect, and for once one we haven't created ourselves.

[Thorne]

Thank you both.

A daunting prospect, and for once one we haven't created ourselves.

For once? The number and ways humans have developed to wipe out civilization pale in comparison to the number and ways in which the universe can do it. Even a little hiccup from the core can't hardly compare.