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How are professors able to multitask seemingly well? I see some professors are able to work on their laptops in seminar or other presentations, sometimes talk to the person next to them, and then still come up with a suggestion or question at the end of it which bemuses me.

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    For me, a question or suggestion is usually triggered by one specific point in the presentation. So being able to ask a sensible question only really implies that they were paying attention for at least 10 seconds :-) Apr 21, 2018 at 0:00
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    Are you asking about at conferences? In that case, they've probably read the paper being presented before hand and already have a (dozen) question(s) prepared.
    – tonysdg
    Apr 21, 2018 at 0:29
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    @tonysdg, I'm not sure that many people would care to prepare questions just because it'd be possible... Sure, I do know some who would, just to show that they could, ... but this starts to be just "display", rather than anything about science, cognition, or anything intellectual. Just turf wars? :) Apr 21, 2018 at 0:36
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    @paulgarrett: I'm only speaking from experience in my area (computer engineering) -- at the last conference I went to, we had read a few interesting papers beforehand and had a variety of questions we wanted to ask the authors about. We only asked during Q&A session if it naturally fit, of course, but we definitely talked with authors offline/during the receptions.
    – tonysdg
    Apr 21, 2018 at 0:38
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    @tonysdg, ah, ok, so legitimate, sincere questions. Good. Good. :) In some venues in my business this is too rare... Apr 21, 2018 at 0:39

5 Answers 5

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As in many situations, more novelty creates greater cognitive load, while non-novelty creates essentially no load. A teensy bit of interesting novelty is little cognitive load, but/and can be quite provocative, depending.

Since relatively experienced people have ... experienced many things... few seminar talks would present much that is radically new, even if it is new to novices. So, even if it is not somehow made explicit by the speaker or by the senior members of the audience, 90% or more of any talk will be a recapitulation of known things... Yes, it is understood that this is mostly necessary, to set a common context for discussion, and that there is not any genuine novelty there.

Also, there is a self-referential aspect to the premises of the question. Namely, the people one sees multi-tasking happily are the ones who can do it. Those who prefer mono-tasking will not be seen multi-tasking. So there's a "selection bias", as well.

And, for me, as for many relatively senior people, I/we have seen many things, and even superficially novel aspects of a seminar presentation may be echoes of things we thought about 30 years ago, etc. Not that there's not progress, but that there are questions that have been pending for decades, and preying on our minds, so (hoping that our minds are still working well) it is not burdensome to hear contemporary progress, but, rather, a happy event. But, in contrast, novices of course have no reference to related technicalities they reflected upon 30 years ago, etc.

And, apart from a greater accumulated experience of ideas and facts, I imagine that a vastly greater experience of coping with novelty and confusion gives a great advantage. E.g., if a smart kid has never in their life before been seriously confused, it is a disturbing experience. And this is a serious issue for very-smart kids in most environments. Similarly for very-smart kids in most undergrad environments. Even up to a point in graduate programs... but/and all the worse to soooo belatedly (after establishing habits that cannot accommodate for this) discover that high-level science (etc.) involves a constant rain of confusion and exceeding-parameters. (For me, this is entertaining, yes, but for those who think that people can control/understand everything easily, and not be confused, it is often deeply disquieting, I gather.)

Practice makes perfect.

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The main issue of multitasking is what Paul Garrett described: being familiar with what is going on.

One important thing about multitasking is it is not doing something simultaneously, but sequentially, very fast, while skipping things that are not important. Human brain can't focus on several things at one time, but it can switch between an array of tasks in milliseconds, given enough practice. Professors usually become professors by doing a certain set of tasks for many years and getting very good and very fast at it so it may seem like they are almost doing multiple tasks simultaneously.

For many it is just a routine one follows subconsciously: a student starts speaking - pay attention; what they are saying is familiar - switch to the laptop until they finish because you already know what they will say next; someone walking, sitting down, standing up - 5 seconds to do something else; you spaced out thinking about something important (e.g. lunch) - pull out a universal question or a joke from up a very long sleeve.

It is also similar to reading: how to humans read and recognize so many letters almost instantly? Look at the first letter, the last, skip everything in the middle, repeat for a few words, guess the rest.

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  • I agree with you on everything you said in this answer except the last paragraph. I had to read every word you wrote before I could understand it. I did not skip everything in the middle. Still, +1.
    – Nobody
    Apr 22, 2018 at 6:42
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    @scaaahu Thanks, I meant a common method of reading doesn't require you to see even half the letters to understand the word and some words are ignored entirely during reading. If you read every word and every letter, you would be proofreading. Apr 22, 2018 at 6:57
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    You're in China. I am a native Chinese speaking person. I have to read almost every letter of a word before I know the meaning of the word. A common problem for Chinese. For example, I must read the whole word to understand the word "word", otherwise, how do I know it's not "world" because you could say "understand the world"?
    – Nobody
    Apr 22, 2018 at 7:01
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I'd like to offer a different interpretation of what you are seeing, along the line of Nate's comment:

The speaker says something that sparks the listener's interest, either because it sounds wrong, or because it relates to something they've been thinking about recently, or...

This triggers a new thought. They pull out their laptop to check with other things they've read before, or do some calculations, or ... generally do some research.

After a while, they come to some conclusion, either positive or negative, and talk to a neighbour as a sanity check.

In question time, they ask about the point they have been thinking about.

Overall, no multi-tasking needs to have taken place at all.

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I am not a professor yet, but let me answer a tangent question: "How to get good at multitasking?"

Caveat: I am talking less on "talk to a colleague while still catching on a talk" and more on "managing 3 grant applications, 4 PhD candidates, and 5 lectures all at the same time." For more on the previous, see the bottom part of my answer.

Mono task

There are some typical situations, such as the beginning of a new job or the start of a PhD, when you have only one task. You don't have to teach, you have this one project only, no follow-ups or returning papers or research collaborations.

So, at the start, you do only one task and learn to do it well. Then everything changes as more tasks appear.

Switching

I learned the switching by necessity. At that point I had a day job in programming and night-and-weekends PhD pursuit. Well, not so bad, day job was part-time, 50%. Naturally, I focused on the job during the job days. The next morning of the weekend, having rested and sort of purposely pushed the job away, I focused on PhD stuff.

This should not necessary be day job and moonlighting. Teaching and research, project A and project B, it's all the same.

Context switch

So, there is some kind of a mental switch between the two tasks. You do only one task at a time, but switch between them. (If you have a CS background, that's what basically OS did before SMP era and in a sense are still doing now.)

Of course, if you do your first switches, you notice that you need a lot of time to become productive again. You need to read up the background you have forgotten, for example. Taking a nap as a part of switch also helps.

After doing such switches every week for a year, I noticed that they become easier and faster. After one more year I got really good. (And also got funding, so I could ditch the day job, even though I learned there a lot, too.)

Nowadays (around 11 years after first attempts at multitasking), I can switch from my lecture mode to answering a surprise research question from a very different area in the matter of seconds.

Byline

Being in the academia for years, and worse, decades, especially in the setting where you have to manage teaching, research, meetings, proposal writing, and what not, conditions you into becoming better and better with multitasking. In other words, the time you need to switch contest reduces with the experience gained.

As in many other soft skills, the more you do it, the better you become. And yes, it's a valuable skill in my opinion.


As for the conference stuff, I remember a quote from a biography novelisation of a world-class mathematician--an anecdotical evidence. In his later years he slept in in the talks, but he could allow himself this, because he grasped the idea of a talk much faster than the presenter could unfold it. So he slept until the applauses and still could ask meaningful questions after that.

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A greater component in the example you give is 90% familiarity and 10% preparation.

If I am in a conference about a field of my expertise, I might have already some questions beforehand, which may or not be handled by the presentation.

As any other kind of meeting, it also helps doing some previous preparation and write down some possible questions I would like to see answered.

Being also with the laptop can mean many things. As for me:

  1. it can mean I have loads of work or urgent matters, and would not be there otherwise, and I am mostly in listening-mode only;

  2. I can be there just checking facts or related data in the Internet (done mostly with the phone nowadays);

  3. or it can just mean that particular talk does not really interest me, and I will be taking advantage of time, drifting into mode 1)

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