Seligman is tapping into a long history of thinking about what it might mean to live well, and to achieve certain goals that go far beyond simply the accumulation of material wealth or social status.

The rise of magma, its accumulation in Chambers, its propulsion into fractures-these events produce chemical signals that reach the surface well ahead of the magma itself.

With the houses being sealed up so well there is an accumulation of humidity that comes from things like the dishwasher, clothes dryer and shower.