"There was no big cataclysmic event that happened right before I went in, " he added.

BBC: NEWS | Entertainment | Urban speaks of rehab 'challenge'

Even a decade after that cataclysmic event, I still notice a deeper interest in the whole person when business colleagues get together.

FORBES: Did The Events of September 11 Change Business?

Our species hasn't been around long enough to experience a cataclysmic extinction event.

CNN: Space's threat to civilization

G7 club, such an event would be cataclysmic, which may be why financial markets do not seem to expect it.

ECONOMIST: The search for scapegoats | The