Perspective
I think a good use of (relatively) cheap commercial space travel would be to send every head of state up for a good look at the planet. Some wouldn't want to go; some would be unfit to; some would merely retreat further into their hidebound ways - but from what I've read and heard, the majority would be shocked into a new perspective on our planet and the life on it. You can't see a flag waved from space; you can't see skin, you can't even see religious differences from a few metres away. What you can see is the beauty …
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