"42 is 24 backwards. 24 can be sounded out to "twenty fours". Fours are what the four elements are: wind, water, fire, and earth. Earth is made of rocks. These rocks contain fossils. Fossils are dug up by humans, and contain history of everything before and present. Here is where we branch off into three sections. On one branch, we go back to the fours, where we can go fourward and backward on our history timeline. This, along with the rocks and other artifacts, represents almost everything that has happened on Earth, and all life that has ever existed here. Now we go back to the second branch, where we go back to humans. Humans are very populous on Earth, and it wouldn't be the same without us living here-it would be desolate without humans, obsolete as well. Humans speak different languages, have created and soaked in many cultures, and created many different things, to help our civilization progress on this planet. Humans keep progressing with our knowledge of the world around us as well, as technology hits new barriers every day. {Now we revisit the 20 at the beginning of this theory} A lot of our knowledge has been gathered over the past 20 years, and at the rate that we're improving, it would be no surprise to me if we knew everything about everything sometimes in the future. Plus, we already think we know everything about everything, but while I can see that's true (not), we still have a long way to go. That now finishes the second branch, and we shall visit the third next... Humans make up a big part of their lives, cause we are the only highly-intelligent creature on our planet, and we like to be smug about that sometimes. {Humans think that the world revolves around them, when there are so many other animals that live on this planet}. One could say that we are our own universe, and that the little universe we live in mainly revolves around us, and us alone."
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P.S.-Google knows everything