[Nomic02] [P] Time bombs

[Carl Muckenhoupt]

Rule proposal:
Time bombs [baf]
A "time bomb" is a kind of token.  In addition to its other properties, a
time bomb has a "delay", which is a span of time.  If a time bomb's
location is a room, and has been the same room for a duration equal to the
time bomb's delay, the time bomb will automatically "esplode" and cease to
exist.

(The effects of esplosion?  To be decided in future proposals.  Perhaps
it destroys rooms.)