Our physicists have confirmed the practicality of using an altered asteroid for transport,

You may have trouble getting permission to aero or lithobrake asteroids on Earth.

If an asteroid was headed toward Earth, I’d hope the presidential campaign narrative would revolve around who voted to accelerate the asteroid, who voted to slow the asteroid, and who has the best policy to divert the asteroid. In 2020, climate change is the asteroid.

I've seen Australia and I've lived on an asteroid and I'd take the asteroid.

It would let me protect the Earth from asteroids. In fact, for a small fee I would protect the Earth on a monthly basis, locating rocks that could be steered into the Earth and then not doing it if the cheque didn't bounce.

Right now, there is another asteroid striking our world, already extinguishing the large and lumbering, already clearing a giant path for the quick and nimble. Our name for this asteroid is “exponential technology,” and even if this name is unfamiliar, its impact is not.

We must keep searching the sky for near-Earth asteroids. We are the only species able to understand calculus or build telescopes. We know how to find these objects. This is our responsibility. If we found a hazardous asteroid with significant early warning, we could nudge it out of the way. Unlike earthquakes, hurricanes or volcanic eruptions, an asteroid impact can be precisely predicted and prevented. What we need to do now is map near-Earth space. We must keep searching the sky.

Right now, there is another asteroid striking our world, already extinguishing the large and lumbering, already clearing a giant path for the quick and nimble. Our name for this asteroid is "exponential technology," and even if this name is unfamiliar, its impact is not.

Fix your course to a star and you can navigate through any storm

The road now stretched across open country, and it occured to me - not by way of protest, not as a symbol, or anything like that, but merely as a novel experience - that since I had disregarded all laws of humanity, I might as well disregard the rules of traffic. So I crossed to the left side of the highway and checked the feeling, and the feeling was good. It was a pleasant diaphragmal melting, with elements of diffused tactility, all this enhanced by the thought that nothing could be nearer to the elimination of basic physical laws than deliberately driving on the wrong site of the road.

I have a big problem with asteroids [...] And so has the rest of the human race. Unless we do something to stop it, sooner or later an impact with an asteroid or a comet will lead to the end of most life on Earth.

There's no easy way from earth to the stars

There’s very good news from the asteroids. It appears that a large fraction of them, including the big ones, are actually very rich in H₂O. Nobody imagined that. They thought they were just big rocks … It’s easier to get to an asteroid than to Mars, because the gravity is lower and landing is easier. Certainly the asteroids are much more practical, right now. If we start space colonies in, say, the next 20 years, I would put my money on the asteroids.

Bodies like the earth are not made to move on curved orbits by a force called gravity; instead, they follow the nearest thing to a straight path in a curved space, which is called a geodesic. A geodesic is the shortest (or longest) path between two nearby points.