His motives for volunteering lie somewhere on the 'continuum' between charitable and self-serving.
a 'continuum' of temperatures ranging from very cold to very hot
(..) that cannot be anticipated by either party. An alternate reality. Precisely. Whatever our lives might have been if the time continuum was disrupted our destinies have changed. Mr. Sulu, plot a course for the Laurentian system. Warp factor . Spock, don't do that. (..)2009 Star Trek