Claude Shannon: Tinkerer, Prankster, and Father of Information Theory (2016)
spectrum.ieee.org
spectrum.ieee.org
> In 1985 he made an unexpected appearance at the International Information Theory Symposium in Brighton, England. The meeting was proceeding smoothly, if uneventfully, when news raced through the halls and lecture rooms that the snowy-haired man with the shy grin who was wandering in and out of the sessions was none other than Claude Shannon. Some of those at the conference had not even known he was still alive.
> At the banquet, the meeting’s organizers somehow persuaded Shannon to address the audience. He spoke for a few minutes and then—fearing that he was boring his audience, he recalled later—pulled three balls out of his pockets and began juggling. The audience cheered and lined up for autographs.
Shannon was famous for his entropy.
When Shannon first derived his famous formula for information, he asked von Neumann what he should call it and von Neumann replied “You should call it entropy for two reasons: first because that is what the formula is in statistical mechanises but second and more important, as nobody knows what entropy is, whenever you use the term you will always be at an advantage!
From:
http://www.spatialcomplexity.info/what-von-neumann-said-to-s...
So people just yelled louder or yelled repeatedly to get things across with better reliability. And when channel capacity was exceeded with everyone yelling too much, no one knew it had exceeded and lot of energy and time was wasted with increasing errors in the system.
Doesn't that feel like a repeat with whats happening in social media and news media these days? Or is it just different things.
Maybe. It can feel like this, but applying mathematical models to social phenomena is tricky. You have to map formal parameters to fuzzy, poorly understood factors. How do you define, precisely, what is a "channel" on a social network? What is "signal", and what is "noise"? People can and do prove anything by using slightly different (or inconsistent) definitions here, getting the numbers to line up just like they want them to.
My understanding is that a better way to approach such mapping would be to shove in probability distributions in place of hard-to-map exact parameters - abstracting away choices and measurements lets you see the wider context here. This pushes the problem to defining the appropriate distributions, but I think that's more tamper-proof. Unfortunately, the results may come out next to useless - e.g. probability distributions so wide you could sail a carrier strike group through them.
I'd love to know what's considered the correct, robust approach to such problems.
An example of a binary signal: "It is unambiguously true that a lab leak did not occur in Wuhan." The spread of this binary signal could be measured using the technique described above. A BERT embedding may suffice.
The channels are just tweets, DMs, and Vox articles.
[1]. https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1056774
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The connection you draw to social media is cute, and I think it could help as an analogy in some cases. The Bit Player (2018 movie) makes a similar cute analogy to robust communication in marriage, that rather than saying the same message louder (yelling) or repeating the message (nagging), you should find many different ways to say the same message. And you could add an error-correcting code like "I love you".
I personally think it's a cute (not disparaging) way to think about communication among humans, but note that we still need to rely heavily on meaning, to decide what it even means to say the same message with different words.
What goes on with social media can be seen through lenses such as decision theory, and game theory, and graph theory, ..., and I think those fields have more to offer from the get-go than information theory. In any case, I personally would lean heavily on social science to try to get a better understanding of social situations, and to consider possible "interventions".
In particular, I do not think the kinds of communication errors that occur between humans are the same as e.g. bit flips. And to go back to the original point, it's tempting to conflate "information" (as in information theory) with "knowledge", or "understanding", or "truth".
Ted Chiang could probably write a plausible future with that as a writing prompt.
That's called semiotics and it was first developed in the late 19th century by Ferdinand de Saussure.
> Saussure approaches theory of language from two different perspectives. On the one hand, language is a system of signs. That is, a semiotic system; or a semiological system as he himself calls it. On the other hand, a language is also a social phenomenon: a product of the language community.
> One of Saussure's key contributions to semiotics lies in what he called semiology, the concept of the bilateral (two-sided) sign which consists of 'the signifier' (a linguistic form, e.g. a word) and 'the signified' (the meaning of the form). Saussure supported the argument for the arbitrariness of the sign although he did not deny the fact that some words are onomatopoeic, or claim that picture-like symbols are fully arbitrary. Saussure also did not consider the linguistic sign as random, but as historically cemented.[a] All in all, he did not invent the philosophy of arbitrariness, but made a very influential contribution to it.
> After his death, structural and functional linguists applied Saussure's concept to the analysis of the linguistic form as motivated by meaning. The opposite direction of the linguistic expressions as giving rise to the conceptual system, on the other hand, became the foundation of the post-Second World War structuralists who adopted Saussure's concept of structural linguistics as the model for all human sciences as the study of how language shapes our concepts of the world. Thus, Saussure's model became important not only for linguistics, but for humanities and social sciences as a whole.
Both papers derive from a technical report, "A Mathematical Theory of Cryptography"[0], written by Shannon in 1945 — 3 years before his breakthrough papers in the Bell Labs Technical Journal.
https://timharford.com/2021/05/cautionary-tales-fritterin-aw...
The podcast was great! I would think that many on HN would find it interesting.
I'd never heard of him, and that's embarrassing, but he probably prefers it that way :-).
Tim Harford's other podcasts are great too - More or Less, and 50 Things Which Made the Modern Economy.
Does anyone have any recommendations along similar lines?
I had forgotten (or never fully appreciated) what Shannon did and what other early pioneers did in computing. I have a better appreciation for all of them now.
One other highlight was Shannon's early childhood and using electrified fencing to communicate with others in his farmland neighborhood.
I compiled a list of his game gadgets, most of which still exist in the care of the MIT museum.
https://boardgamegeek.com/geeklist/143233/claude-shannon-man...
> Information Theory was created by C.E.Shannon in the late 1940s. The management of Bell Telephone Labs wanted him to call it “Communication Theory” as that is a far more accurate name, but for obvious publicity reasons “Information Theory” has a much greater impact—thus Shannon chose and so it is known to this day.
[1] https://press.stripe.com/#the-art-of-doing-science-and-engin... [2] http://worrydream.com/refs/Hamming-TheArtOfDoingScienceAndEn...
https://curiositystream.com/video/3831
If you sign up through a YouTube promotional link, you also get access to Nebula for free:
Although not devoted to Claude Shannon, Jim Al-Khalili's documentary "The Story of Information" does discuss Shannon's significant contributions and is how I first became aware of Claude Shannon.
https://en.wikipedia.org/wiki/A_Symbolic_Analysis_of_Relay_a...
Includes a lot of interesting information, including Claude Shannon of course, who worked at Bell Labs. Bell Labs was a remarkable place.