13
$\begingroup$

MathOverflow is almost ten years old now. Soon (if not already) the webpage will be old enough that some of the users may not have memories of the internet before MO. What were favorite (internet based, say) substitutes for MO before 2009 of current users?

$\endgroup$
8
  • 10
    $\begingroup$ To misquote Brian Conrad: people lived in caves! $\endgroup$
    – Lucia
    Dec 11, 2018 at 5:22
  • 3
    $\begingroup$ The nForum, but that was of course for a very specialised type of discussion :-) $\endgroup$
    – David Roberts Mod
    Dec 11, 2018 at 8:16
  • 3
    $\begingroup$ Mailing lists were a big thing. Still active and dating back to the 90s that I am aware of are the categories list and the fom (=foundations of mathematics) list. There were serious flame wars on fom about categories in the late 90s that I read on the archives with amazement (this was about a decade later). The diamond OA journal Theory and Applications of Categories was essentially launched on the categories mailing list. $\endgroup$
    – David Roberts Mod
    Dec 11, 2018 at 8:30
  • 1
    $\begingroup$ I will add a link to previous post on this meta related to @DavidRoberts' comment about mailing lists: Mailing lists / Usenet groups for research math. $\endgroup$ Dec 11, 2018 at 10:32
  • 4
    $\begingroup$ Sitting with your friends in a bar and talking about math. $\endgroup$
    – Asaf Karagila Mod
    Dec 12, 2018 at 9:16
  • 1
    $\begingroup$ @Lucia You make me very curious. Mis- of which quote was that? $\endgroup$ Dec 18, 2018 at 5:17
  • 10
    $\begingroup$ @მამუკაჯიბლაძე: Before functoriality, people lived in caves! $\endgroup$
    – Lucia
    Dec 18, 2018 at 6:04
  • 1
    $\begingroup$ I wouldn't call them "substitute for MO". $\endgroup$
    – YCor
    Dec 31, 2018 at 10:35

5 Answers 5

17
$\begingroup$

Usenet

For example, these newsgroups:
sci.math sci.math.research sci.math.num-analysis sci.math.symbolic

See back in time to them HERE

$\endgroup$
2
  • 1
    $\begingroup$ Gerhard "Hasn't Looked Back That Often" Paseman's answer incorporates USENET as well. It seems that USENET was very active once although the total volume of threads there is considerably less (~16000 in math.research) than at MO today (~100000). $\endgroup$ Dec 17, 2018 at 5:17
  • 2
    $\begingroup$ sci.math.research was moderated and had a much smaller volume than sci.math (just as MO has a much smaler volume than m.se). $\endgroup$ Dec 18, 2018 at 2:28
27
$\begingroup$

Before MathOverflow, the culture of mathematics question-and-answers was quite primitive.

I remember the days when a student would impress their mathematics questions, expressed in cuneiform, by pressing with a stylus into clay tablets, and then bake them and carry them the next day to the summit of the mountain, to be viewed the next dawn by the gods. The priests would capture the birds at the summit who had seen the tablets, and divine the answers by inspecting their entrails.

In a major paradigm shift, it became common practice to write one's cuneiform in a transliteration of LaTeX, which led to far higher quality entrail output. Such students were the envy of their peers.

In later days, I had to march ten miles uphill in both directions through the snow, first depositing the computer tape containing my question at my supervisors pigeon-hole, and then later retrieving the dot-matrix printed output.

Finally, an oral tradition arose, whereby the students would ask their questions into the midst of a lecture, hoping for some kind of answer in signs. Oh, a wondrous day it was, when the answer to one's question appeared written on the chalkboard during the lecture!

$\endgroup$
9
  • 2
    $\begingroup$ As someone who has to worry about lots of occurrences of $+1$ vs $-1$ in my work, it is definitely true that I am hoping for some kind of answer in signs. $\endgroup$
    – LSpice
    Dec 19, 2018 at 0:28
  • 27
    $\begingroup$ P.S. I believe that the cuneiform markup language is properly called CLaYTeX. $\endgroup$
    – LSpice
    Dec 19, 2018 at 0:29
  • 3
    $\begingroup$ What snow? Didn't you go to Berkeley? $\endgroup$
    – Asaf Karagila Mod
    Dec 24, 2018 at 23:36
  • 4
    $\begingroup$ @AsafKaragila en.wikipedia.org/wiki/Last_Glacial_Period#Northern_Hemisphere :-P $\endgroup$
    – David Roberts Mod
    Dec 25, 2018 at 1:09
  • 2
    $\begingroup$ Berkeley was for graduate school. There Joel just had to walk up hill to Evans Hall from home, and then walk up hill again to catch the homebound shuttle. Gerhard "Prefers Walking Up A Staircase" Paseman, 2018.12.24. $\endgroup$ Dec 25, 2018 at 3:06
  • 1
    $\begingroup$ I lived for a time in the Berkeley Hills, up on Grizzly Peak Road, so I had to walk up hill to get home, and getting to school, well, somehow I found this was also somehow uphill. In addition to the snow, there were often also earthquakes and vast fires. $\endgroup$ Dec 25, 2018 at 5:06
  • 2
    $\begingroup$ @David: Are you calling Joel a troglodyte? $\endgroup$
    – Asaf Karagila Mod
    Dec 25, 2018 at 7:44
  • 2
    $\begingroup$ @AsafKaragila just that he seems like he's been around here for ages :-) $\endgroup$
    – David Roberts Mod
    Dec 25, 2018 at 23:23
  • 1
    $\begingroup$ Old time MO user Noah Snyder also lived near Grizzly Peak, but he biked down to Evans Hall in the morning, then took his bus on the shuttle up to MSRI and rode downhill back home. $\endgroup$ Dec 30, 2018 at 19:19
8
$\begingroup$

IRC (Internet Relay Chat) had #math channels where people discussed concepts using an obscure dialect called ASCII.

There were moderated and unmoderated forums with thread based email discussions called USENET news. Some of them dealt with mathematics, and were remarkably free of spam and noise before some corporation bought them and made them publicly available (and opened the spam floodgates).

There were (and are) efforts by small groups to communicate by email and by web pages about various subject areas of mathematics. Although it was started earlier, by 1996 there was a repository of submitted scientific articles, some of which included mathematics, at Los Alamos National Labs. (Later Cornell took it over. It's called ArXiv.)

Some people shared their list of hyperlinks for internet resources. Occasionally a company would incorporate those lists into their curated databases. One of these companies was Yahoo.

The Wayback Machine has records of some of these pages. You might take a nostalgic tour one of these days.

Oh, and there really was no substitute for MathOverflow, primarily because the question answer format combined with a form of mathematical markup was still coming into its own. Also, there was no moderated group with such rapid turnaround as well as a scheme for community moderation. Living in caves and clubbing one another is not far from pre MathOverflow.

Gerhard "Hasn't Looked Back That Often" Paseman, 2018.12.10.

$\endgroup$
8
  • $\begingroup$ The math irc channels were never at the level of MO. The only person I ever met there with a Ph.D. was Mariano Suarez-Alvarez. $\endgroup$ Dec 12, 2018 at 6:25
  • 3
    $\begingroup$ @Harry, I guess you were on the wrong network. mathoverflow.net/a/30695 was gleaned from a sci.math post which came from a discussion David and I had on #math. We also did some group theory, general algebra, and some combinatorial matrix theory back in the day. Gerhard "Guess You Had To Be There" Paseman, 2018.12.12. $\endgroup$ Dec 12, 2018 at 15:21
  • $\begingroup$ ArXiv started in August 1991: en.wikipedia.org/wiki/ArXiv $\endgroup$
    – S. Carnahan Mod
    Dec 21, 2018 at 3:32
  • $\begingroup$ @S.Carnahan, indeed. Do you know when they started accepting mathematics preprints? Gerhard "Not Up On The History" Paseman, 2018.12.20. $\endgroup$ Dec 21, 2018 at 4:57
  • 1
    $\begingroup$ That is a bit complicated. According to this page: arxiv.org/archive/math the first mathematics preprints were posted February 1992. On the other hand, we see from arxiv.org/list/math/9110 that there were 3 preprints from October 1991 that later got math cross-listings. Finally, it seems the "math ArXiv" as a separate entity with its own subject headings was initiated in December 1997: arxiv.org/new/math.html $\endgroup$
    – S. Carnahan Mod
    Dec 22, 2018 at 4:52
  • $\begingroup$ Thus my hedging. In any case, by 1996, they had several mathematics papers, if not a formal mathematics archive. Gerhard "Trying For Truth Over Accuracy" Paseman, 2018.12.21. $\endgroup$ Dec 22, 2018 at 6:05
  • $\begingroup$ There were other subject-specific preprint servers, much as the arXiv started out (for high-energy physics). One that stuck around for quite a while was the K-theory one faculty.math.illinois.edu/K-theory though it started in 1993, it seems. At the time there was a peculiar practice of removing the paper once it was published and keeping only the abstract; how quaint! Here's an old list of more, with a stack of broken links uni-math.gwdg.de/WorldMath/Preprints.html Perhaps the Wayback Machine can illuminate. $\endgroup$
    – David Roberts Mod
    Dec 24, 2018 at 5:29
  • $\begingroup$ Mathematical physics, mp_arc, dating back to 1991 web.ma.utexas.edu/mp_arc/mp_arc-home.html? $\endgroup$
    – David Roberts Mod
    Dec 24, 2018 at 5:33
4
$\begingroup$

The Categories mailing list has been already mentioned in comments, I just want to add one detail, I think a significant one.

Mac Lane almost never posted there. I know several people that were sort of disappointed. Don't remember who told me this, but, when asked about it, he responded that such kind of communication was for birds.

He thus foresaw birth of Twitter many years ago.

$\endgroup$
1
  • 2
    $\begingroup$ Could he use the word in sense 3: "a girl or woman, especially one considered sexually attractive"? $\endgroup$ Dec 24, 2018 at 7:35
4
$\begingroup$

The Secret Blogging Seminar used to have a Requests thread, where people could suggest topics for us to write about.

$\endgroup$

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .