When Kids Start Doing Root Cause Analysis

http://blog.marksweep.com/post/22692428919/when-kids-start-doing-root-cause-analysis

by mkswp • 14 years ago

92 24 14 years ago

blog.marksweep.com

K2h• 14 years ago

His experience of having trouble answering more than '5 why's' is a nice revelation. This is an exercise that nearly every engineer learns about (that started at Toyota[1]) and has become one of the basic tools used in continuous improvement. I often complete the exercise and it is trouble enough to make it to the 5'th why, the thought actually never occurred to me to go farther.

As a side note - when you are improving things, that 4'th and 5'th 'why' are often things that are very hard (and costly) to change.

[1] https://en.wikipedia.org/wiki/5_Whys

mseebach• 14 years ago

If it doesn't hurt, you're doing it wrong.

If something is hard and costly to change, yet it's the root cause of problems, it's so much more important to change.

randlet• 14 years ago

It is pretty amazing how far down the rabbit hole you can go in "5 why's".

Louis C.K. does a very funny bit on the topic of the OP (NSFW I think)http://www.youtube.com/watch?v=BJlV49RDlLE&feature=playe...

malandrew• 14 years ago

That video is the first thing I thought of while reading the article. I wasn't sure if it would get up voted or not, but I'm glad it did, since it does highlight how far you can go when determining the root cause of something.

"... but Why?" "Because some things are and some things are not!"

gus_massa• 14 years ago

The video is funny, but usually real kids are happy with 2 or 3 chained answers and a "I don't know." Another possible last answer is "Let's look in a book" or the modern version "Let's google that".

After 10 minutes of googling : http://www.youtube.com/watch?v=C5OYH2lDNqU

luke_s• 14 years ago

I have two kids, and the youngest is just starting on the 'why?' phase. Its great fun! I treat it as a game to try and see how long I can keep on answering. As soon as I don't know the answer, I explain that I don't know (or perhaps that nobody yet knows) and discuss how we could find out.

One interesting thing I discovered - a surprisingly large number of things will either lead to physics or human psychology if you keep asking 'why?'. However I don't know if that reflects some deeper truth about the world, or just my bias in how I answer the questions.

Michiel2• 14 years ago

> However I don't know if that reflects some deeper truth about the world, or just my bias in how I answer the questions.

It's the same reason why you always end up on "Philosophy" if you're browsing Wikipedia and consistently follow the first link in each article. Here's the path for "Airplane":

  Airplane
  Fixed wing aircraft
  Aircraft
  Vehicle
  Motion (physics)
  Natural science
  Science
  Knowledge /* we know where this going... */
  Fact
  Proof (truth)
  Argument
  Philosophy

Try it yourself: http://www.xefer.com/wikipedia

sev• 14 years ago

I had heard this before and just tried it...awesome!

It's also interesting that philosophy links to existence (ontology) and that links back to philosophy.

Kronopath• 14 years ago

I think that website cheats a little bit. The first link in "Science" is not "Knowledge" but "Latin", where it's describing the root of the word "Science". If you follow it properly, you'll find that even the article for "5 Whys" doesn't go to Philosophy:

  5 Whys
  Technique
  Technology
  Tool
  Goal
  Animal
  Eukaryote
  Organism
  Biology
  Natural Science
  Science
  Latin
  Italic Languages
  Indo-European Languages
  Language Family
  Language
  Human
  Taxonomy
  Ancient Greek
  Greek Language
  Indo-European Languages // Infinite loop!

loup-vaillant• 14 years ago

I think it is more revealing of your answers: for anything but the human ones, you take a materialistic approach, which eventually boils down to physics.

Same principle for human matters, except we don't know yet how to close the gap between psychology and physics. Plus, you may be content with psychology if you believe there's some "magic" (like immaterial souls) between the two.

matb33• 14 years ago

I have two as well and the eldest just started the Whys a few weeks ago. Some of my parent-friends with slightly older kids complain about the endless Whys... Maybe I'll get to that same point of annoyance someday (I hope not), but so far I relish the challenge, hoping not to get stumped too quickly!

keeptrying• 14 years ago

Dont kids already do this and most annoyed parents eventually answer "because the sky is so high" ....

randomdrake• 14 years ago

One of my favorite quotes regarding this is from Michael Crichton in one of his more obscure, autobiographical books called Travels:

"Although knowledge of how things work is sufficient to allow manipulation of nature, what humans really want to know is why things work. Children don't ask how the sky is blue. They ask why the sky is blue."

I recommend the book to anyone and everyone looking to explore their own understanding of the world and their place within it.

fennecfoxen• 14 years ago

The real 'why' can be a dangerous question to answer, though. :)

"Daddy, why do the owls want to make the Sun go away forever?"

"Well, Billy, it's because the film is an expression of the cultural tension generated by the threat of nuclear warfare which faced American society in the 1980s when it was made. When they're singing about how the good guys are 'running out of batteries' it's giving you a context to interpret your experiences in a possible future in which you might have to hide out in a fallout shelter in the dark for days at a time."

"Huh?"

gdubs2• 14 years ago

Perhaps children intuitively have 'chain of events' thought patterns. It's something many adults seem to lack, which makes proposing solutions to big problems difficult; because one has to be able to see far beyond simple cause & effect to both understand the problem and the proposed solution.

rhizome• 14 years ago

The technical term for this is "empiricism," and you're right that some adults lose this after a time, or at least mental models start resembling Kowloon Walled City.

gdubs2• 14 years ago

I think the problem is that empiricism is often taught, in primary school, in a very 2-dimensional, black & white fashion – enforcing a rigid view of cause & effect. (Edit: often the case, but not always. There are great teachers out there.)

Maybe it's test-driven curriculum that's largely to blame: question -> answer.

I think in addition to basic empirical reasoning, kids should be exposed to determinism in the vein of chaos theory; where one is forced to accept that while connections exist, they may not be immediately obvious. (Edit 2: I guess this is "Art/Music Class", sadly non-existent in more and more schools)

jahmed• 14 years ago

Kids are never the problem. They are born scientists. The problem is always the adults. The beat the curiosity out of the kids. They out-number kids. They vote. They wield resources. That's why my public focus is primarily adults.

-Neil deGrasse Tyson

http://www.reddit.com/r/IAmA/comments/mateq/i_am_neil_degras...

lss456• 14 years ago

I'm trying it myself and love it. You can get real far in 5 whys. Speaking or writing it in a stream-of-consciousness fashion (first thing that comes to your mind) is quite insightful.

gosub• 14 years ago

Why is almost always the wrong question, since it involves an intention. The right question to ask is How. "Why did you do that?" vs "How did that phenomenon happen?".

ken• 14 years ago

I've read somewhere that kids keep asking "why?" because they figure out that it's an easy way to get people to talk a lot, and listening to people talk is how they learn language.

bane• 14 years ago

"Why" is an interesting hack. Before this children learn how things work through observation of events. "Why" is a force multiplier where the child no longer even has to wait for events to happen but can explore things that haven't happened or that are hard to observe. It's a short hop from there to deep abstraction and philosophy.

Cultivating this may be one of the most important things that parents can do in terms of ensuring children keep their curiosity long into adult hood (with appropriate training to develop the endless string of "whys" into a more socially acceptable question answering model).

When Kids Start Doing Root Cause Analysis

Related Stories