Well this came out 42 years ago. I guess that means it’s the secret of the universe today.
*The Hitchhiker’s Guide to the Galaxy

The number 42 is, in The Hitchhiker’s Guide to the Galaxy by Douglas Adams, the “Answer to the Ultimate Question of Life, the Universe, and Everything“, calculated by an enormous supercomputer named Deep Thought over a period of 7.5 million years. Unfortunately, no one knows what the question is. Thus, to calculate the Ultimate Question, a special computer the size of a small planet was built from organic components and named “Earth”. The Ultimate Question “What do you get when you multiply six by nine”[20] is found by Arthur Dent and Ford Prefect in the second book of the series, The Restaurant at the End of the Universe. This appeared first in the radio play and later in the novelization of The Hitchhiker’s Guide to the Galaxy.
The fourth book in the series, the novel So Long, and Thanks for All the Fish, contains 42 chapters. According to the novel Mostly Harmless, 42 is the street address of Stavromula Beta. In 1994, Adams created the 42 Puzzle, a game based on the number 42. Adams says he picked the number simply as a joke, with no deeper meaning.
Google also has a calculator easter egg when one searches “the answer to the ultimate question of life, the universe, and everything.” Once typed (all in lowercase), the calculator answers with the number 42.[21]