How do you answer "So what's the practical application....?"

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Discussion Overview

The discussion revolves around the challenge of explaining the practical applications of advanced mathematical concepts, such as topology and algebra, to individuals unfamiliar with the subject. Participants explore various strategies for addressing the common question, "So what's this used for in real life?" The scope includes theoretical considerations, personal motivations for studying mathematics, and the relationship between pure mathematics and its applications in fields like engineering and physics.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that mathematics is pursued for its own sake, similar to art, and that its applications often emerge later, citing examples like number theory and cryptography.
  • Others argue that algebra is essential in engineering, with practical applications in design, while topology is less frequently utilized but still valuable.
  • A participant mentions G. H. Hardy's book "A Mathematician's Apology" as a relevant discussion point regarding the value of mathematics beyond immediate applications.
  • One participant proposes a creative approach to explaining mathematics by likening it to magic, suggesting the use of mathematical card tricks to engage interest.
  • Another participant emphasizes that modern mathematics, including differential geometry and topology, is widely applied in physics, referencing specific areas where these concepts are crucial.
  • Some participants highlight the historical context of mathematical tools being developed before their applications are recognized, using the example of Viagra to illustrate this point.
  • There are mentions of specific mathematical texts and theories that relate to physics, such as string theory and knot theory, indicating areas where mathematics intersects with physical concepts.
  • One participant expresses a personal perspective on how they handle inquiries from those unfamiliar with mathematics, seeking insights from others on this experience.

Areas of Agreement / Disagreement

Participants express a range of views on the relationship between mathematics and its applications, with no clear consensus on the best way to address the question of practical use. Some emphasize the intrinsic value of mathematics, while others focus on its utility in various fields.

Contextual Notes

The discussion reflects a variety of assumptions about the audience's understanding of mathematics and the nature of its applications, with some participants acknowledging the challenge of communicating these concepts effectively.

  • #151
fresh_42 said:
I told you the metaphor is wrong. Thank you.

Simple? No. Tool? Only a very small part of it is actually in daily use.
You told me it is wrong, yes, but I'm not agreeing with you. With logic, sorry, I was thinking of programming logic, which is very simple.

Part of set theory is being used eh? Wow, so it is a tool after all, even if all the applications haven't been figured out yet
 
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  • #152
fresh_42 said:
I think to consider mathematics merely as a tool box, is a bit like high school students think of mathematics as a mean for calculations.
As if it had anything to do with calculations.
Archie Medes said:
I thought the question is the general public asking what the practical use is?

But I also honestly don't see it as anything other than a toolbox. Why do people use mathematics if not to solve problems?

The pursuit of it, well, that is another matter.
The way Mathematics works, is that people also like to explore; and this is what is the study and development of new Mathematics - the insights which Mathematicians and others did not have before.
 
  • #153
.
dkotschessaa said:
This answer is too vague for most people, unfortunately. What tools? What do you mean?

-Dave K

The kinds of tools we mean are manifold. Perhaps the concept is best communicated to lay persons with a few examples. Read my earlier post about abstract algebra and equations for what I envision as one instructive example.
 
  • #154
symbolipoint said:
The way Mathematics works, is that people also like to explore; and this is what is the study and development of new Mathematics - the insights which Mathematicians and others did not have before.
Yes, but is the question "why do you pursue knowledge?" or "what does that knowledge end up used for?"

It doesn't matter that there is no existing use for something, or that one can't be thought of. The fact people are building it means it exists as a tool.
 
  • #155
Mark Harder said:
The kinds of tools we mean are manifold. Perhaps the concept is best communicated to lay persons with a few examples. Read my earlier post about abstract algebra and equations for what I envision as one instructive example.
The way to select the right example is by first asking the questioner about themselves and their lives. If people want a one-size-fits-all answer, well whoever comes up with one will make an absolute fortune in education.
 
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  • #156
Archie Medes said:
The way to select the right example is by first asking the questioner about themselves and their lives. If people want a one-size-fits-all answer, well whoever comes up with one will make an absolute fortune in education.

Good points, all.
 
  • #157
With a tangible, albeit virtual, example:

 
  • #158
lavinia said:
When the proof of Fermat's Last Theorem was announced on the front page of the New York Times a mortgage securities strategist at an investment bank said to me, " How much money did he make spending his whole life on this?" I said "None. He didn't do it for money." He shook his head and said,"What a waste." and walking away - no doubt to go do something practical.
Like create credit default swaps or some other financial scam for big bucks.
 

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