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

In summary, the conversation revolves around the question of the practical applications of mathematics in real life. The speaker presents two extreme answers to this question, one being a speech about the irrelevance of the question and the other being a list of potential uses such as topological data analysis and cryptography. The conversation then delves into the use of mathematics in different fields such as engineering, physics, and even magic tricks. The importance of understanding advanced mathematical concepts like group theory, rings, and fields is also emphasized. The conversation concludes with the idea that sometimes new mathematical tools are invented before their specific applications are recognized, much like the drug Viagra.
  • #141
symbolipoint said:
What tools, does not or do not matter. He made an analogy between ANY crafts-person who uses tools/devices/equipment/materials/the skill in choosing and handling the tools; and most scientists/engineers/accountants_&_such who rely on or explore Mathematics in their work.
You can extend it beyond craftspeople to anyone at all. We all use tools, and we all have tools that we love, and tools we wish we had.
 
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  • #142
Archie Medes said:
You can extend it beyond craftspeople to anyone at all. We all use tools, and we all have tools that we love, and tools we wish we had.
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.
 
  • #143
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.
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.
 
  • #144
Archie Medes said:
I thought the question is general public asking what the practical is?
Yes, and the fact, that it is very different from toolboxes and calculations is exactly the point, at which it becomes difficult to explain.
 
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  • #145
But it isn't different at all.

Engineer has a problem, uses the relevant mathematics to solve it.

I mean, no wonder laypeople are having difficulty understanding it, if people are over complicating it with their philosophical pursuits!
 
  • #146
Archie Medes said:
But it isn't different at all.

Engineer has a problem, uses the relevant mathematics to solve it.

I mean, no wonder laypeople are having difficulty understanding it if people are over complicating it with their philosophical pursuits!
Yes, the engineer's problem is the exercise. The theorems are why it can solve the engineer's problem, not how. And it has absolutely nothing to do with philosophical pursuits. Your point of view is as if you said physics is good to keep your car on the road.
 
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  • #147
Archie Medes said:
But it isn't different at all.

Engineer has a problem, uses the relevant mathematics to solve it.

I mean, no wonder laypeople are having difficulty understanding it, if people are over complicating it with their philosophical pursuits!

Mathematics is not a toolbox in itself.
if you haven't spent hours on logic, proofs, set theory, and other foundations of mathematics, I doubt you can do much real mathematics.
 
  • #148
fresh_42 said:
The theorems are why it can solve the engineer's problem, not how.
A hammer doesn't tell a carpenter what to nail
 
  • #149
Bipolar Demon said:
Mathematics is not a toolbox in itself.
if you haven't spent hours on logic, proofs, set theory, and other foundations of mathematics, I doubt you can do much real mathematics.
Done plenty of logic, and love proofs.

Knowing how they work doesn't change them from being tools
 
  • #150
Archie Medes said:
A hammer doesn't tell a carpenter what to nail
I told you the metaphor is wrong. Thank you.
And logic is simple, and a tool
Simple? No. Tool? Only a very small part of it is actually in daily use.
No, I haven't done set theory, but let me guess, people apply it to solve problems, right?
I don't know. Why should they? The small part that is actually used can merely be called set theory.
 
  • #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
 
  • #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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