this post was submitted on 23 Nov 2024
85 points (87.0% liked)

Showerthoughts

30517 readers
596 users here now

A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The most popular seem to be lighthearted, clever little truths, hidden in daily life.

Here are some examples to inspire your own showerthoughts: 1

Rules

  1. All posts must be showerthoughts
  2. The entire showerthought must be in the title
  3. No politics
    • If your topic is in a grey area, please phrase it to emphasize the fascinating aspects, not the dramatic aspects. You can do this by avoiding overly politicized terms such as "capitalism" and "communism". If you must make comparisons, you can say something is different without saying something is better/worse.
    • A good place for politics is c/politicaldiscussion
    • If you feel strongly that you want politics back, please volunteer as a mod.
  4. Posts must be original/unique
  5. Adhere to Lemmy's Code of Conduct

If you made it this far, showerthoughts is accepting new mods. This community is generally tame so its not a lot of work, but having a few more mods would help reports get addressed a little sooner.

Whats it like to be a mod? Reports just show up as messages in your Lemmy inbox, and if a different mod has already addressed the report the message goes away and you never worry about it.

founded 2 years ago
MODERATORS
 

They're probably the only things that "create" information in the sense that you can always grab another slice. Thank you delicious pi!

all 33 comments
sorted by: hot top controversial new old
[–] [email protected] 32 points 2 months ago (4 children)

Is it actually information? I can give you the number two, but it's not useful information until I also tell you which digit is significant and what the number means. Communicating information is still limited by the speed of light.

[–] radix 11 points 2 months ago (1 children)

From one of my favorite college professors: apparently in the Chevy Chase days of Saturday Night Live he would do the Weekend Update and had a recurring bit that went like this.

And now it's time for the basketball scores. 98-82; 102-99; 95-76.


That's data. Without context there's no useful information.

[–] josephmbasile 2 points 2 months ago

Very nice! The Permittivity of Free Space is doing a handstand and would like a word with you.

[–] [email protected] 6 points 2 months ago (1 children)

I don't see why not, it's just numbers, which is all we store most data as.

You could use it as a source of pseudorandom numbers to encrypt an infinite data steam, e.g. we'll encrypt using e, starting at position 40468.

[–] grue 11 points 2 months ago (2 children)

Randomness is the opposite of information.

[–] [email protected] 4 points 2 months ago (1 children)

It's irrational, which just appears random (which is why I said pseudorandom).

[–] Serinus 1 points 2 months ago

You don't want your encryption keys to be predictable.

[–] [email protected] 4 points 2 months ago

It is not. If I in July in Europe will say "there is no snow outside", I give you very little information. If in same conditions I will say "there is snow outside", I will give a lot of information.

Amount of information is proportional to (logarithm of) improbability of outcome.

[–] [email protected] 5 points 2 months ago (1 children)

Situationally, yes. "I want the next digit of pi" is information in that sense of the word. It's not a particularly useful piece of information unless you're building something that requires a circle with a circumferential precision larger than the width of our entire universe.

[–] josephmbasile 1 points 2 months ago (1 children)

How many digits of Pi would you have to read for you to be able to reconstruct all of the information in the Universe up to this moment?

[–] [email protected] 4 points 2 months ago

None, because the digits of π have absolutely nothing to do with the universe.

[–] [email protected] 0 points 2 months ago (1 children)

Is it actually information?

Yes. For every bit of number pi you get one bit of information.

I can give you the number two

You gave me log2(10) bits of information. Thanks.

but it's not useful information until I also tell you which digit is significant and what the number means.

You are misunderstanding what informatiob is.

[–] [email protected] 4 points 2 months ago (2 children)

I can give you √2 which is 16-bits of information as characters. It's also an irrational number. How you express something doesn't change the amount of information is contained in the message.

[–] [email protected] 3 points 2 months ago

How you express something doesn't change the amount of information is contained in the message.

Welcome to the world of entropy coding.

[–] Snazz 2 points 2 months ago

How you express something absolutely does change the amount of information in the message. That’s the foundation of compression.

Bitmap image files tend to be larger than png files, even when they both represent the same image.

1.41421… can be thought of as an expanded form of sqrt(2). In this case, the expansion is to an infinite number of digits.

[–] [email protected] 25 points 2 months ago (1 children)

Any infinite group applies to this too. The group of integers, real numbers, etc. are infinite. Just add 1 👍

[–] josephmbasile -1 points 2 months ago

True although I would like to note that the digits of Pi are the heart of r-n jesus and the number line just does boring stuff like steadily increasing forever.

[–] [email protected] 19 points 2 months ago (1 children)

I think you’re somewhat confused about what “irrational” and “information” means.

[–] josephmbasile -3 points 2 months ago (1 children)

Is one of them something other than information?

[–] [email protected] 11 points 2 months ago

An irrational number is just a number that cannot be expressed as the ratio of two integers. There is nothing deeper about it.

[–] [email protected] 19 points 2 months ago (1 children)
[–] josephmbasile 1 points 2 months ago

Does the set of all sets contain the Universe?

[–] AdamEatsAss 11 points 2 months ago* (last edited 2 months ago)

Irrational number do not "create" information, they simply contain every possible combination of digits. Given enought time you could find any pattern you wanted that represents some "information", you could also find an infinite amount of patterns that represent false "information". You cannot pick out a set of digits of pi and use that to learn something other than that set of digits.

[–] [email protected] 9 points 2 months ago (2 children)

According to your reasoning, the Fibonacci numbers, or repeatedly applying a math operation to a number are infinite sources of information

[–] [email protected] 3 points 2 months ago (1 children)

As far as I see through context in science, anything is information. Matter. Energy. Numbers. Words. So an infinite number has to have infinite information, yeah?

[–] [email protected] 3 points 2 months ago

No. sqrt(2) is an irrational number characterized as the positive solution to x^2 - 2 = 0. It's described by a very small amount of data. Even its decimal expansion can be determined up to any precision by a simple algorithm.

[–] josephmbasile 3 points 2 months ago

Nah I replied to someone else with a similar thought. The Notorious Fibs sure I agree with you they are new information, similar to the primes but just adding +1 over an over again or even some repeating pattern doesn't add new information beyond the initial pattern.

[–] [email protected] 4 points 2 months ago (1 children)

Well, that's certainly a username.

[–] [email protected] 2 points 2 months ago (1 children)

Why, who's Joseph M Basile?

[–] [email protected] 2 points 2 months ago

I dunno about the Joseph part but the rest, certainly.

[–] josephmbasile -2 points 2 months ago

Also did you ladies and fellas know that y=x^x is the ace of spades?