wouldn't the future get cluttered with to-do items? to-do: send someone on Oct 21 2016 back to Jan 3 2003 to refuckulate the fuckulator in order to prevent X consequence. To-do: Oct 22 2016 send someone back to Oct 21 2016 to stop the sending of the agent to Jan 3 2003. To-do Oct 23 2016 Send someone back to Jan 4 2003 to defuckulate the fuckulator to ensure condition X.