  Interstellar exploration will advance human knowledge and culture in multiple
ways. Scientifically, it will advance our understanding of the interstellar
medium, stellar astrophysics, planetary science and astrobiology. In addition,
significant societal and cultural benefits will result from a programme of
interstellar exploration and colonisation. Most important will be the cultural
stimuli resulting from expanding the horizons of human experience, and
increased opportunities for the spread and diversification of life and culture
through the Galaxy. Ultimately, a programme of interstellar exploration may be
the only way for human (and post-human) societies to avoid the intellectual
stagnation predicted for the "end of history".
