In the game of Truth or Dare, players are made to choose between two options:
1. **Truth.** Answering a particular question.
2. **Dare.** Performing a particular action.
Against perfect opposition, which option should one choose to minimise harm to
themselves? Here is a minimax argument for Truth.
---
A Dare is a request, and a Truth is a request for information. All requests for
information are requests, but not all requests are requests for information.
Thus, all Truths are Dares, but not all Dares are Truths. Let $T$ be the space
of Truths, and $D$ be the space of Dares. Then, we have:
$$
T\subset D
$$
Thus, choosing Truth strictly reduces the space of issuable requests. A request
can be harmful, and perfect opposition always issues a most harmful request.
Clearly, a most harmful request $T$ is at most as harmful as a most harmful
request in $D$. Thus, choosing Truth minimises harm.