Come up with a concrete plan for major contingencies and you'll save yourself a lot of worry.
The Swedish Civil Contingencies Agency said last Wednesday that two Canadair CL-415 water-bombing planes on loan from Italy joined the firefighting efforts that included helicopters from Norway.
Charismatic people are also often prepared for contingencies, so when something goes wrong, they're usually available immediately to right the ship.
Gould and Lewontin called instead for a broader vision of evolution, with room for other forces, for flukes and historical contingencies, for processes unfolding at different levels of life — what Gould often called "pluralism.