

The plot of Inverted World is set in the city of Earth, which is basically a large wooden building on wheels. In keeping with the hard science background of hard sci-fi, Inverted World also keeps with the spirit of classical sci-fi in that it is, at its core, an analysis and discussion of the current human condition, albeit in a stranger setting. Hard sci-fi, generally considered to be the branch of science fiction that most deals with actual science, tends to be a little less palatable to the general public because there is less talk of light-speed space ships and aliens, and more talk of the mathematical/physical limitations that the technology of modern man faces.
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Probably one of the stranger science fiction books I have ever read, Inverted World requires a high tolerance for the genre of hard sci-fi.

in which a city built on wheels is slowly pulled north on rails, in order to escape the crushing gravitational field behind it.
