The Restaurant at the End of the Universe

One of the major problems encountered in time travel is not that of accidently becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broad-minded and well-adjusted family can't cope with.

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There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.

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