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Ask HN: Concepts that clicked only years after you first encountered them?

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Re: Ask HN: Concepts that clicked only years after you first encountered them?

#361
post #274

Earlier quoted context omitted.

I think people come out of school hating reading because nobody likes being forced to read specific books, as everyone's tastes are different. It sounds like this might have been what happened to you.

I never hated reading, it's just that I didn't get the point of it. What are we even doing here and why? What's the point? Math has clear purpose. I do enjoy some books. I just didn't get the point of studying them beyond reading. Why are they babbling about ? Is there any use for this information or is it just a torture in memorization? Why would I ever care about all these abstract literature terms? Ironically they…

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Re: Ask HN: Concepts that clicked only years after you first encountered them?

#362
post #312
post #274

Earlier quoted context omitted.

I think people come out of school hating reading because nobody likes being forced to read specific books, as everyone's tastes are different. It sounds like this might have been what happened to you.

I completely agree with this. I loathed Shakespeare in school. Now I try to get a visit every year to the Stratford Festival (in Stratford, Canada) to see at least one or two Shakespearean plays. I also remember reading 1984 on my own time in high school- it wasn't in the curriculum the year I might have. It blew me away. But if I'd been forced to read it, I probably would have been bored.

For other HN readers:

I was like this too. I had no interest in ol' Bill. Then I read his 'best' works. And then I read them again. It takes a bit to get really used to iambic pentameter, to the old words, to the places and people he was writing for, to his limitations of candlelight and lack of amps, etc.

Reader, it is totally worth it.

There are very many very good reasons that he is still produced and studied. I encourage you in this new year to give him a solid try. Not just a play or two. Read him and watch the plays at the same time. There are hundreds of productions on YT for every play of his, all free, most very good.

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#363
When we think about history over any time scale, we tend to think about one region, person, group, etc within that period of time. In reality, “everything” was going on during that time.

History is far richer than we tend to realize. So much is going on all the time; it’s impossible to grasp it all.

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#364
post #339

Related : I have a request for the 1 major concept that has never clicked for me --> Can someone help me understand 'productive value' in an economy ? I have tried hard, and can't for the love of me understand what lies at the bottom of trade, what is the base value of assets / activity. It just doesn't click. Questions like: - Can a services based economy work if the consumers of the services weren't producing some…

Here's something to think about: suppose you buy an assortment of candy from the grocery store and distribute a uniform collection of pieces to a room full of middle school students.

Some students will like the sour candy; others won't. Some will like coconut; others won't. Some will love nuts; others will hate them.

Now you let the students talk to each other and trade candy. The ones who like sour candy but hate coconut will trade with the students with the opposite preference, and so on.

At the end of the trades, everybody is happier with their new bundle - why would they have traded otherwise? So value has increased. But this is magic - no new candy was produced! Through trade we have increased overall value - the exercise was positive sum.

With some effort you can see that a middle man might add value by expediting trades - connecting people who like coconut with people who hate it (suppose there are thousands of students in the class who all speak different languages).

And you can see how fiat currency might make things easier. Rather than having to come up with the barter value of coconut candy and sour candy to nuts, you can convert both to a single unit and then trade units.

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#365
Tensors. Years ago, I would read the Wikipedia page about them every so often, and completely fail to understand what they were.

Then one day I was modeling something in a spreadsheet, and I thought to myself "you know, what I really need here, is 3rd axis to this spreadsheet". And for a few minutes, I thought I had invented a new form of spreadsheet/structure, and was considering trying to build a 3d spreadsheet program.

But, of course, suddenly everything I'd read about tensors and not understood before snapped into place, and I realized that this is exactly what they are (to be precise, this is a special case of a tensor, the contemplation of which caused me to understand what the general case is, and why e.g. a scalar is a rank 0 tensor, a vector is rank 1, a matrix is rank 2 my 3d spreadsheet idea is rank 3, etc).

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#366
Singing.

I was part of a choir in high school and early college, but never managed to get good at this, even though I knew well how skilled singing should sound.

More than a decade later, when I was really exhausted after tending to my infant child I let out a sigh of the same type that we did as exercise back in the choir("Aaaaaaaah"). To my surprise it was almost effortless despite making quite the sound due to it being more or less at the resonance frequency of the bones in my skull.

And then it dawned on me. It's essentially turning yourself into an elaborate fart pillow.

Of course there's much more to that in things like posture and the mentioned resonance, but I had that covered from years of training. The only piece missing was using the diaphragm correctly.

Now I sing daily and while my range is pretty average, I don't strain myself any more and can do it for hours. Also the tone is just so much better now.

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#367

I think I've read about git multiple times before I started using it. And even then at first it was with a dash of scepticism. I can't put my finger on that moment, the moment of clarity but it had to be quite glorious. Before, I was "what else do you need we have svn". Sounds horrible now that I think about it.

Pfft. I believe that anyone who read about git, and responded "yeah, duh, it's so obvious" is a dirty, dirty liar. An explanation of "interactive rebasing" to me might as well been an explanation of quantum entanglement to a learning-disabled ant. Sometimes it still trips me up. I have an embarrassingly large number of copies of source folders, despite git's safety net of "don't worry, you can always restore it; pink…

I would never rebase at the command line and avoid rebasing generally to the chagrin of team mates. A merge retains the information to reconstruct the rebase anyway so might as well use the simpler option. Unless there are a lot of commits such that in aggregate they conflict but individually they apply smoothly.

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#369

1. Everyone is the main character in their own story. This manifest in all sorts of ways - from people not being there when you need them the most, from friends dying off as soon as proximity changes, to how and why get people get promoted in jobs. This isn't necessarily bad, but if you don't know how to navigate this it can be quite painful and confusing. 2. Representation matters. I knew this for a long time, but i…

2. Hits home for me as I’ve begun to realize the same thing. Not seeing any person of color in an activity makes it’s so I don’t want to be the first.

Growing up this was a big realization for me the other way. I was raised by evangelicals in Kansas, including going to a mennonite school for most of my education. As a teenager I realized how at my school, at my church, at basically everything in my family's shared life, there was not a single person with brown skin. Not even one. And worse, no one had real awareness of this, and would not understand how it could be any sort of problem if you brought it up. To them it was just the natural order of the universe that their world was purely white people.

There's plenty of evangelicals of every race, but overall the communities are very segregated. It was clear no matter their professed faith, in practice the community I grew up in was hostile to PoC.

Re: Ask HN: Concepts that clicked only years after you first encountered them?

#370

Earlier quoted context omitted.

You don't really understand OOP until you recognize it as one style among many that you may use in different parts of each program. Some parts are naturally OO-y, others DD-y, others declarative, often an unholy mix in each place. The problem dictates elements of the solution. Shoehorning a solution into a particular style makes a bad solution. Never forget who is in charge. Deferring to a style dodges responsibility…

DD?

Domain-driven or data-driven (not sure which).
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