Probably the fact that it is set (mostly) in outer space, though I would consider it comedy first and sci-fi second.
Space
The Hitch-Hiker's Guide to the Galaxy is 100% fact in the 42nd dimension.
The brilliant book does not tell you, that's the point of the book!
The Earth is destroyed to make way for a new hyperspace bypass.
I think it's either Prostetnic Vogon Jeltz or the mice, or possibly both.
Space
The Hitch-Hiker's Guide to the Galaxy is 100% fact in the 42nd dimension.
Shynola
Approximately 15% of schools list The Hitchhiker's Guide to the Galaxy in their curriculum.
hitchhikers guide to the galaxy... it's a hilarious movie
2
Because it says so in the hitchhikers guide to the galaxy.
"The Hitchhiker's Guide to the Galaxy" was written by Douglas Adams, a British author known for his humorous and satirical science fiction works. The book follows the adventures of Arthur Dent, an average man who is whisked away on an intergalactic journey after Earth is demolished to make way for a hyperspace bypass.
for leaving just before the world exploded in the hitchhikers guide to the galaxy
The brilliant book does not tell you, that's the point of the book!
Read The Hitchhikers Guide to the Galaxy By Douglas Adams.
The "trilogy" of five books were published between 1979 and 1992.