doctrine of double effect

This note last modified June 16, 2021

Collateral damage is ok, as long as it wasn’t the intended outcome of a moral action

This can collapse into consequentialism, but serves as a good load bearing argument

DDE says things are ok if:

  • the act is ok, independent of its harmful effects
  • The agent intends the good, and doesn’t intend the bad, either as a means or an end
  • There is no way to do the good without doing the bad
  • The harmful effects are not disproportionately large relative to the good being sought.

Sometimes I’m afraid of the DDE being used in normal conversation as a shield, even when people did secretly intend the collateral damage.

To what extent does intent matter? killing or letting die