71 comments
  • danbruc15h

    According to Wikipedia the two variants exist because the digits of large numbers used to be grouped into groups of six digits but in order to improve readability this was eventually changed to groups of three digits and some insisted that with that also the naming should be adjusted. A long scale trillion has three digit groups when using groups of six digits (1,000000,000000,000000) and six after the switch to groups of three (1,000,000,000,000,000,000) which then should be a short scale sextillion but somehow it ended up as a quintillion.

    • alberth15h

      So basically

        2 commas = "Millions"
        3 commas = "Billions"
        4 commas = ...
      • zeckalpha15h

        N-illion = 1000^(n-1)

        • alberth10h

          Isn't it more like:

            N-illion = (Size_of_Digit_Grouping)^(n-1)
          
          Since the OP was saying groupings use to be by 6-digits, not 3-digits (i.e. "1,000") as seen today.
        • danbruc15h

          The original long scale makes more sense, billion, bi million, twice six digits.

          • zeckalpha15h

            Yet, mille and milli- mean thousand.

            • danbruc14h

              But the suffix -one in Italian is used to indicate something big - spaghetti vs spaghettoni - so a milione is a big thousand, a million.

    • cmcconomy15h

      Thanks!

      This is the key piece of information for making sense of it. Ultimately the OP's insight is that the number-naming system used in the west is thousands based instead of millions based, but came to that by observing the number-naming outcomes instead of the source notation that led to it.

  • pilaf15h

    Spanish uses the long scale, but lately I've been noticing people mistakenly using the short scale in Spanish more and more, likely due to the influence of English and the internet, sometimes even in news articles and other "professional" publications. You may see someone speaking of "un trillón de dólares" (a trillion dollars), which while it makes sense in English when speaking of federal budgets or the market cap of FAANG, in long scale that's more than the world's entire money supply.

    It's especially annoying because it creates ambiguity and renders the *illón-words fairly useless.

    • theamk12h

      If you want to be unambiguously understood, especially in international context, it seems it's better to avoid words beyond "million" altogether.

      "million of millions of dollars" or "ten to the twelfth dollars" or "one tera dollar" or even "one EEE twelve" (for programmers) will always be understood correctly, no matter which part of world listeners are from.

    • mattigames15h

      It's only "mistakenly" until it becomes the norm, which as another Spanish speaking person, I bet that will be the case no long in the future.

      • Aardwolf14h

        In Dutch the word "miljard" for 10^9 is too well known and deeply ingrained to change I think, but with "triljoen" which could either mean 10^18 or a direct conversion from the American English trillion, all bets are off

      • pilaf15h

        Yeah, I too think that's likely the direction we're heading, and I'd be fine with either option as long as it was consistently used, this transitional phase is just painful.

        • mattigames14h

          In the meanwhile you can say one thousand millions (for what Americans call a billion), like the local tv news does, and for the bigger one say just say millions of millions (what Americans call a trillion), that should be unambiguous enough.

  • mynti15h

    this is so funny because i always envied english for it being so clear: million, billion, trillion. in german we have these "awkward" names in between: million, milliarden, billionen, billiarden. but now hearing about this long scale it actually does make quite a lot more sense when thinking about it in multiples of millions

    • 3036e413h

      Swedish does that as well. miljon, miljard, biljon, biljard.

      This is sufficiently confusing to people that every time I see a newspaper article mention something is a biljon of something they have to mention how much it is and remind readers to not confuse it with an American billion (that is only a miljard).

      In most contexts when big numbers like those show up though the metric-system comes to the rescue, since things will be referred to as being a mega-something or giga-something etc anyway. That works great until Americans attempt to do it and get the letters wrong or use K instead of k or M instead of m that causes new confusion and then we're back at having to guess what something means depending on what side of the Atlantic it was written.

    • dariosalvi788h

      same in Italian: milione (1E6), miliardo (1E9), bilione (1E12) etc.. the long scale a "one" is 1E6 bigger than the previous one, example: bilione is 1E6 bigger than milione.

    • krawcu15h

      same in polish milion, miliard, bilion, biliard, trylion, tryliard, kwadrylion, kwadryliard...

    • mc3215h

      I think they forgot "thousandard" = 1,000,000. And million is a thousandard of those.

  • HocusLocus3d

    As a kid I stressed our Olivetti divisumma 24 ( https://www.ithistory.org/sites/default/files/hardware/Olive... ) with a million times a million. It entered a perpetual mechanical cycle that even unplugging it could not break. Finally Dad had to attack its innards and tug and twiddle until he pulled out a spring loaded gear and it caught a cog on the next go-round. It lifted its digit arms and printed out a 'partial answer' that was a series of random numbers as wide as the whole mechanism.

    He said "please don't do that again." I moved on to torture computers.

  • vincnetas15h

    TIL about one more thing US misunderstood and now we have to deal with it. Another one is command key on mac, "borrowed" from road sign indicating "sight seeing place" :)

    • justusthane12h

      I don't see how borrowing the Swedish "point of interest" symbol for the command key is "misunderstanding" something - as I understand the story, they just liked the symbol and decided to use it.

      Also, I'm certainly not a US apologist, but I also don't see how the US using the short scale is a case of misunderstanding - it sounds like they just decided that it makes more sense that way (and I would agree, although maybe that's just because I'm used to it).

    • eviks14h

      What was misunderstood in the command key? The link mentions nothing of the sorts

  • GolDDranks15h

    And in East Asia, we use a system based on exponents of 10000. I kind of like it, except when I have to think about it and the short/long scales at the same time.

    10000^1 = 万 10000^2 = 億 10000^3 = 兆 10000^4 = 京

  • marginalia_nu15h

    I just seamlessly switch scales and units with the language.

    When I talk Swedish I think in terms of long scale, 24 h clock, SI units.

    When I talk English I think in terms of short scale, 12 h clock, imperial units.

    It's like different cultural basis vectors.

  • lgl14h

    Numberphile did a video on this many years ago: https://www.youtube.com/watch?v=C-52AI_ojyQ

  • eviks14h

    Long scale seems to be much better because you have to remember fewer prefixes, so with fewer easier to remember rules you get wider coverage

    Why didn't this principle win?

    • WindyMiller14h

      On the other hand, I think short-scale millions and billions are used far more often than the larger numbers, and the starts of words tend to be more salient than the ends, so it's useful to have them distinguished by the first letter instead of the last syllable.

      (Plus, "milliard, with an 'ard'" doesn't have the same ring to it.)

  • frizlab11h

    Oh I never got why there was a confusion for the value of billion and co. I always assumed I did not get the proper value, but now it makes much more sense!

  • witrak15h

    It is used in all European countries (I don't know any European country that doesn't use it). I know the long scale under the name "European" and the short scale as "American".

    • OtherShrezzing15h

      >I don't know any European country that doesn't use it

      With the exception of people over 70, the UK has pretty uniformly moved to the American system. All of our govt statistics, corporate finances info, day-to-day conversations involving billions refer to "one thousand million"

      • Macha15h

        Same in Ireland, the long scale was already an elderly person thing when I was a child

    • swores15h

      UK used to do it the European way, but has adopted American way since (IIRC) about 50 years ago. As a Brit I wish we still used the traditional way.

      (And despite Brexit, UK still is a European country!)

      • randomtoast15h

        It may take fifty years, but I think that you will eventually rejoin the EU.

        • swores14h

          I definitely hope so! (And hope it won't take that long, but it wouldn't surprise me.)

        • tim33314h

          Or whatever the thing is then.

  • flysand73d

    I'm kinda wondering are there any countries that still use the long scale nowadays? For me the biggest thing I've had to learn is that in Russian we use a short scale, except we don't have "billion" and instead it's "milliard". So it's just that you need to be careful with translating that one word. Are there other countries where the scale "shifts"?

    • solstice16h

      Germany and France do. It can be a PITA when dealing with English texts... But then again when dealing with things in an international context you'll also encounter Chinese and Indian systems for large numbers.

      Chinese:

        1 yi
        10 shi
        100 bai
        1000 qian
        10000 wan
        10 x 10000 shi wan (hundred thousand)
        100 x 10000 bai wan (one million)
        1000 x 10000 qian wan (ten million)
        1 x 100.000.000 yì (hundred million)
        10 x 100.000.000 shi yi (one billion)
      
      Indian: no idea how it works in practice but it involves crore and lakh...
      • ripe14h

        > Indian: no idea how it works in practice but it involves crore and lakh...

        They write thousands just like in the U.S. system, with the same commas: 20,000. But beyond that, the "lakh" is 100k, the "crore" is 10M, and commas in written figures go in twos:

        The population of Australia is about 2.8 crores: 2,80,00,000. The Delhi metro area is over 3.4 crores: 3,40,00,000.

        They have more unique words for every 100-multiple unit after crore, to go along with the commas, but in everyday practice they don't use those terms. Instead, they go "long" on the crores. Thus, India's population is about 146 crores; the new Mumbai underground Colaba-Bandra-SEEPZ line will cost ₹21,000 crore.

        When reporting foreign money, they use the U.S. system with millions and billions as usual: ₹21,000 crore is parenthesized (US$2.5 billion).

      • JdeBP15h

        The Indian system is coincidentally being discussed right now at https://news.ycombinator.com/item?id=44492175 .

      • adornKey15h

        China seems to have even more scales..

          myriad scale - based on 10.000
          mid-scale    - based on 10⁸
          long scale   - based on doubling of exponent (4, 8, 16, 32, ..)
    • luismedel15h

      Spain.

      But more and more people use "billions" (not billardo, which is our own term for it). The same people that say "diez kas" (for 10k) instead of "diez mil" like they're saving words for doing that (hint: no).

      • tiagod13h

        >The same people that say "diez kas" (for 10k) instead of "diez mil" like they're saving words for doing that (hint: no).

        I sometimes say (in Portuguese) "dez kapa".

        It's just slang. Language changes a lot faster than you realise, and a lot of words that are "normal" to you would illicit the same response before you were born.

    • gpderetta16h

      In Italian, "billion" is still normally called "miliardo".

      edit: can't spell

      • Wilder797715h

        Small typo, but it's "Miliardo" (one "l").

    • kaliszad15h

      Czech does as well, milion, miliarda, bilion, biliarda...

    • belchiorb16h

      Portugal uses it, but probably due to foreign influence there’s more and more people that use the short scale, which makes everything a mess

      • tiagod13h

        Yep it's a mess. Most newspapers and official channels just avoid the word billion altogether, just writing "mil milhões" (a thousand million).

        AFAIK the exception is the finance world, where I believe B stands for the short scale for a long time, and $1B has been used in newspapers for a long time too due to globalisation of the economy.

    • ozgung15h

      Same in Turkey. We say Milliard instead of Billion. In my childhood I can swear it was like Million->Milliard->Trillion->Trilliard. They were in daily language because 1 Million Turkish Lira was like a few dollars. At some point they decided Trilliard does not exist and it became something like a Mandela Effect for me. We never used Billion though.

      • fsniper15h

        I still don't know which is which. Just give me the power to the 10, Is it 10^9 or 10^12? Who know?

    • scotty7915h

      Pretty much all of continental Europe is on long scale. In computing it's masked by SI prefixes. Nobody talks about billion bytes whatever it means.

      https://upload.wikimedia.org/wikipedia/commons/thumb/d/d3/ES...

      • solstice14h

        Would be cool to use "ten giga-euros" to express "10 billion €". A bit like giga-gram in ... astronomy?

    • 16h
      [deleted]
    • piva0015h

      Sweden still does (and I believe the other Scandinavians as well).

    • ginko16h

      German does.

  • javier_e0615h

    I Spanish language we have this dad joke:

    ¿Que es un millón? Mil miles.

    ¿Que es un billón? Un millón de millones.

    ¿Que es un semillón? ???

    Una semilla muy grande.

    • joarv0249nw15h

      "Mr. President, two Brazilian soldiers were killed yesterday in Iraq." "Oh my god... How many is a Brazilian?"

  • intpx15h

    Oh thanks for completely breaking my numeracy. Gotta relearn maths real quick

  • 867-530915h

    >imagine my disappointment when I left home for university, got access to computers and the World Wide Web, and discovered that the names I had learnt were off by several orders of magnitude

    imagine discovering mega- giga- tera- then not mentioning them

  • mattigames15h

    In the long system how is a billionaire called? A milliardaire? That doesn't sound right.

  • aaron69514h

    The Economist (British) changed from million million -> thousand million in (1944) -

    "If it is objected that a billion in this country is reserved for the meaning of a million million, then it can be counter-objected that, if so, it is reserved for a use that interests nobody but astronomers and the historians of German inflation"

    The US leading the way in a sensible measuring system.

    • tiagod13h

      This was flagged. I vouched for it as it has an interesting insight, even if you find the joke unnecessary.

      I did however not find the quote via Google search. Can you share the source?

      EDIT: I have found the source! https://archive.org/details/sim_economist_1943-11-06_145_522...

      The Economist, November 6, 1943:

      >The “Billion”

      >This week, for the first time, the note circulation is in excess of £1,000 million. There is, of course, very little real difference between £999 million and £1,001 million—apart from a difficulty for the compositor who works within a narrow column. And yet there is a great psychological barrier, and the setting-down of that extra digit, with its comma following, seems to symbolise the breaking of fresh ground. The totals of revenue and expenditure have, of course, been in ten figures almost ever since the beginning of the war, and the total of the national debt—a rather shadowy notion anyhow—is well into eleven. With the line crossed by a third familiar statistic it is natural to ask what this magnitude of 1,000 million is to be called. There is no word native to these islands. The continental word “milliard” was in some use some years ago, but has not been used very much recently. Well over half the English-speaking peoples, however, use “billion” to mean a thousand million, and if it is objected to this usage that a billion in this country is reserved for the meaning of a million million, then it can be counter-objected that, if so, it is reserved for a use that interests nobody but astronomers and the historians of German inflation. For some time past, The Economist has been using “billion” in American contexts with the American meaning—i.e:, one thousand million. It now seems convenient to extend that usage to British and foreign contexts. Henceforward, in these columns, in the absence of specific indication to the contrary, “billion” means 1 and nine 0’s.

  • nkurz15h

    The 80's song "One Billion is Big" by the "Fat Boys" seems very relevant here: https://www.youtube.com/watch?v=TdnLhN4SeYY

    • nkurz8h

      I know we're not supposed to complain about being voted down, but this is a case where the downvoters are simply wrong and need to be corrected.

      This is a fantastic educational song designed to teach children how big a billion is by using examples involving hamburgers. I promise it will be the best 80's educational rap you hear all day.

    • AStonesThrow14h

      [dead]