QuoteOriginally posted by Hellraiser
Cmon guys stop kidding.
We are not kidding, Hellraiser. The quotes above are from the books of the legendary Douglas Adams.
Of course, Adams was kidding... about pretty much everything. He was the master of sci-fi-comedy.
As for the 7.5 million years, time travel is routine in the Hitchhiker's galaxy. The main characters travel in a stolen star ship (the Heart of Gold) which has a prototype infinite improbability drive. The infinite improbability drive allows the characters to do some things that are not impossible but are merely infinitely improbable... such as being in two places at the same time, for example.
You will have to read his books if you want to understand this stuff. There is simply no effective way to describe it.
Note that the CF Guide uses the Hitchhiker's theme, including the friendly words, "Don't Panic", on the cover.
The books and the audio recordings (made for BBC radio) are the best, IMHO. The TV mini-series and the movie have amusing moments, but they do not have the depth of humor found in the books and the radio broadcasts.
EDIT: If you have a bittorrent client, here are links to several versions of the Hitchhiker's Guide to the Galaxy: