"The word coach comes from the old English word coach, which was a vehicle, a carriage that took royalty or very important people from where they were to where they wanted to go. That's really what a coach is. He or she tries to create a vehicle that will help you get where you're going, not where the coach wants you to go."

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To get to Earth from the edge of the solar system, depending on the time of year and the position of the planets, you need to pass through at least Poland, Prussia, and Turkey, and you'd probably get stamps in your passport from a few of the other great powers. Then as you get closer to the world, you arrive at a point, in the continually shifting carriage space over the countries, where this complexity has to give way or fail. And so you arrive in the blissful lubrication of neutral orbital territory.

— Paul Cornell