Just a thought, and before anyone can beat me to it. "Why are we here?"
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Short of a warp drive-tier break through that causes it to rain Nobel Peace Prizes, not for a while. To be sure, I'm positive we'll have dabbled in interplanetary colonization, or started seriously planning it within our life times, but interstellar will take longer. Space travel, however, remains a necessity for us to survive, so we better get cracking.