Fort Knox gold audit

The title said

Will the government allow an audit of Fort Knox?

The rules said

Resolution turned on whether an audit was 'allowed', without saying whether an announcement, a visit, a scheduled audit or a completed one was the bar.

What happened

Officials announced a visit and said an audit would happen. The market resolved No. Yes holders argued the announcement was permission; the resolution said it was not.

The lesson

One undefined verb in the rules is one coin-flip you didn't know you were holding.

What our card would have shown

• R2Rules don't say what counts as done