Alternatively, if information retrieval and transmission is expensive enough, or equivalently, if finding another source quick and easy, “I don’t know” could mean “Ask someone else: the expected additional precision/confidence of doing so is worth the effort.”
Alternatively, if information retrieval and transmission is expensive enough, or equivalently, if finding another source quick and easy, “I don’t know” could mean “Ask someone else: the expected additional precision/confidence of doing so is worth the effort.”