# How much information is there in the world

**URL:** <https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344>\
**Category:** Factual Questions\
**Created:** [August 29, 2007, 9:13am UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344 "2007-08-29T09:13:51Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![SpaceDog](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/spacedog/32/9932_2.png) [@SpaceDog](https://boards.straightdope.com/u/SpaceDog)\
**Post date:** [August 29, 2007, 9:13am UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/1 "2007-08-29T09:13:51Z")

</div>

Or … how could we go about getting to a figure.

If an alien race decided to record every piece of information present on planet earth (they’ll somehow pause time to allow this to happen before they blow the planet to smithereens) how much space would they need? Let’s assume they’ve failed to invent data compression as they’ve spent so long inventing time manipulation and doomsday weapons.

Since ‘information’ is a bit vague how about “How much computer storage space would all the published works (books, papers, magazines, etc ) take up?”

Had anyone tried to come up with a ballpark figure for this? Is there even any possible way?

There’s lots of other considerations, what about duplicated information, what about the information on the Internet is it published, what else haven’t I thought of?

SD

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [August 29, 2007, 9:21am UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/2 "2007-08-29T09:21:44Z")

</div>

Here’s a rough guide:  
[http://www.jamesshuggins.com/h/tek1/how\_big.htm](http://www.jamesshuggins.com/h/tek1/how_big.htm)

> [@](#):
>
> Exabyte  
> 1,152,921,504,606,846,976 bytes or 260  
> approx. 1,000,000,000,000,000,000 or 1018
> 
> ```
> * 5 Exabytes: All words ever spoken by human beings.
> 
> ```

(I think ‘spoken’ implies ‘published’ too)

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [August 29, 2007, 9:23am UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/3 "2007-08-29T09:23:30Z")

</div>

Oops, although [this](http://en.wikipedia.org/wiki/Exabyte) page casts doubt on that factoid.

---

<div class="post-metadata">

**Author:** ![An\_Gadai](https://avatars.discourse-cdn.com/v4/letter/a/d6d6ee/32.png) [@An\_Gadai](https://boards.straightdope.com/u/An_Gadai)\
**Post date:** [August 29, 2007, 9:05pm UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/4 "2007-08-29T21:05:25Z")

</div>

That link is interesting in the sense it brings up what counts as information, is it all text or should audio/video be included? Does nuance count as information?

---

<div class="post-metadata">

**Author:** ![Indistinguishable](https://avatars.discourse-cdn.com/v4/letter/i/90ced4/32.png) [@Indistinguishable](https://boards.straightdope.com/u/Indistinguishable)\
**Post date:** [August 29, 2007, 9:08pm UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/5 "2007-08-29T21:08:32Z")

</div>

Failed to invent data compression? Fine, but there are still (essentially equivalent) issues of “What coding scheme are you using?”. (Especially when discussing things like audio and video)

But I imagine the brunt of your question is captured by something like straightforward encoding of pure text in ASCII.

---

<div class="post-metadata">

**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [August 29, 2007, 9:24pm UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/6 "2007-08-29T21:24:33Z")

</div>

Do you consider “state” to be information?  
In other words, do you need to record the Earth in sufficient detail to reproduce it exactly?

---

<div class="post-metadata">

**Author:** ![SpaceDog](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/spacedog/32/9932_2.png) [@SpaceDog](https://boards.straightdope.com/u/SpaceDog)\
**Post date:** [August 29, 2007, 9:28pm UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/7 "2007-08-29T21:28:11Z")

</div>

Thanks for the links **Mangetout**. Interesting, if that figure is anywhere near accurate then we’re certainly at, or near, the point we could construct the storage system.

[QUOTE=Indistinguishable]  
Failed to invent data compression? Fine, but there are still (essentially equivalent) issues of “What coding scheme are you using?”. (Especially when discussing things like audio and video.  
[/QUOTE]

Aye, I hadn’t really thought about video or audio, I’d kinda assumed that everything would be text. But I expect if we’re going to count discussion of art or anything like that then information would have to include pictures, audio and video too.

And, on preview, my idea wasn’t that our aliens want to be able to reproduce the earth completely just to agressively store all knowledge in case part of it comes in useful in the future.

---

<div class="post-metadata">

**Author:** ![diggleblop](https://avatars.discourse-cdn.com/v4/letter/d/ac91a4/32.png) [@diggleblop](https://boards.straightdope.com/u/diggleblop)\
**Post date:** [August 29, 2007, 9:39pm UTC](https://boards.straightdope.com/t/how-much-information-is-there-in-the-world/417344/8 "2007-08-29T21:39:09Z")

</div>

Well, if Wikipedia (The english version) were printed out, [this](http://en.wikipedia.org/wiki/Image:Size_of_English_Wikipedia.svg) is how it would look.
