Hempel's dilemma is a problem for defining "physical" in terms of physics. What are the two horns of the dilemma?
A) If you use current physics, the theory is false; if you use future physics, the theory is vague.
B) If you use current physics, the theory is incomplete; if you use future physics, it is dualistic.
C) If you use current physics, the theory is true; if you use future physics, it is false.
D) If you use current physics, the theory is false; if you use future physics, it is awkward.

Question

Quizplus · Accepted Answer

Hempel's dilemma highlights a problem in defining what is "physical." If "physical" is defined in terms of current physics, then the definition may be false because current physics could be incorrect or incomplete. On the other hand, if "physical" is defined in terms of a future, possibly complete physics, then the definition becomes vague or speculative, as we cannot know what future physics will entail.

Hempel's Dilemma Is a Problem for Defining "Physical" in Terms