In science it is obvious that we are certain about many things, but among philosophers there is little agreement as to why we know these things. In Knowing Things for Sure physicist and realist philosopher, Mariano Artigas traces the confusion to non-realist philosophies and argues that practitioners of experimental science do reach logical truths about reality.

Karl Giberson and Mariano Artigas offer an informed analysis on the views of Stephen Jay Gould, Richard Dawkins, Edward O. Wilson, Carl Sagan, Stephen Hawking and Steven Weinberg; carefully distinguishing science from philosophy and religion in the writings of the oracles.