 First, he defines a proposition to be ethically neutral — relative to an agent — if the agent is indifferent between the proposition’s truth and falsehood. The agent doesn’t care about the ethically neutral proposition as such — it may be a means to an end that he might care about, but it has no intrinsic value. (The result of a coin toss is typically like this for most of us.) Now, there is a simple test for determining whether, for a given agent, an ethically neutral proposition \(N\) has probability 1/2. Suppose that the agent prefers \(A\) to \(B\). Then \(N\) has probability 1/2 iff the agent is indifferent between the gambles: