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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?

#621
post #436

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…

While I do see merit in the idea that representation matters, to me, it all depends on what representation in particular. Racial representation gets all the attention. But for example, seeing that a philosophy major can have a successful computer science experience

I don't want to downplay the importance of diverse academic backgrounds, but representation of immutable characteristics (gender identity, race, disability, etc) usually get the most attention because they are essentially always the things that have impact on kids. Your little girl or your autistic child is going to pursue paths they maybe wouldn't otherwise take because of representation. The earlier you get a child to engage with something, the better their outcomes with pursuing it.

Representation is literally about people seeing themselves. If you can't nail down what "people like me" look like when it comes to representation, it might be that representation isn't quite the right way to frame the problem. It's only one aspect of diversity.

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

#622
For me, it’s the determinism of nature. The clear hard fact that nothing I can do will impact the pre-determined outcomes. This is cold physics as we know of today. Also, the ‘present’ feeling different from past is just a trick our mind plays on us. This realisation has had profound impact on me - but this dawned on me quite late despite reading a lot on this topic for years.

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

#623

Earlier quoted context omitted.

> it's generally considered a pseudoscience. Only by people who have no experience with it. NLP ("Neurolinguistic Programming", not Natural Language Processing) is pre-scientific , yes, but that's not the same as being a pseudoscience, and calling it such is a disservice. We have pretty much discovered the operating system of the human mind. applying the principles and techniques discovered and systematized under the…

I don’t really care about this one or the other but you’re taking about this thing exactly the way cultists do. It doesn’t lend it any credence. Why would the “evil scientists” be so against your ideology, specifically? Academics publish papers on all kinds of things. This is the same type of stuff of Gene Ray or flat-Earthers etc.

For someone who doesn't care one way or the other you're being a just a little insulting.

> It doesn’t lend it any credence.

NLP doesn't need "credence". It works. Believe or not, it's no skin off my teeth.

Here's the thing: I pretend to be a crass cranky curmudgeon but I'm actually a bleedin' heart soft-touch kind of a fellow. I care about my fellow humans beings and I wish them well, more-or-less. I know NLP works, because I've worked with it myself, and because I was cured of serious clinical depression by Richard Bandler himself. This stuff really is a turning point in human history.

So, on the one hand, I got my cure and went on with a new normal life, so it doesn't matter to me personally what you or anybody in particular thinks of NLP.

On the other hand, what kind of monster would I be if I kept my mouth shut when some ignorant person calls it "pseudoscience" and warns people away from it? To me it's like I'm one of the first people to hear about and benefit from penicillin, yeah? And some dude is like "penicillin is generally considered a pseudoscience". I'm going to speak up, ya feel me? There's a feeling of obligation, to truth and to the other people out there who are suffering like I was, and who may well find relief in this new not-yet-science of human psychology.

> Why would the “evil scientists” be so against your ideology, specifically?

I never said "evil scientists", and NLP is not an ideology. (Nor a cult for that matter.)

As for why NLP is shunned by researchers, who have a hard time replicating even the simplest discoveries, even though normal everyday people learn and use this stuff successfully every day all over the world, like I said, it's strange.

I have no answer for you.

The obvious answer: "NLP is BS", is a non-starter for the reasons outlined above. (To reiterate: it does work.)

In any event, although it's a puzzle, it's not my problem. My depression was cured.

In sum, check out NLP. Or not, what do I care? (But really, do. It's the real deal.)

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

#624
post #520

This might be a good thread to ask this. I have done all the math in college, but I don't fundamentally understand sine, cosine, tangents, and logs. For sine, cosine, and tangents, I understand how they may correlate on a graph, but that doesn't really give me additional insight into how to apply or use any of this. Similar thoughts on logs, especially when it comes down to O(logn). Maybe someone can direct me to a v…

I don't know exactly from what angle you're looking at this, so let me explain through trigonometry.

We know that triangles may be displaced, rotated, flipped and scaled while still looking the same. We have a word for this: we say two triangles are congruent when they are the same up to these operations.

This means that there is something intrinsically invariant about triangles. Can we find it? Actually yes! If the sides of a triangle have lengths A, B, C, then the ratios A/B, B/C, etc. are invariant. That is, if you make a triangle twice as big, all sides will multiply by 2, so A/B becomes (2A/2B)=A/B -- it's the same!

So, we can come up with names for these invariant ratios. They're most useful for right triangles. To give names, we need to pick any of the two smaller angles as a reference, call it "a". Now, let C be the largest side, A be the side opposite to the angle and B the adjacent side. Then, the ratio A/C can be called sin(a), B/C can be called cos(a) and A/B can be called tan(a).

Since sin(a), cos(a) and tan(a) are ratios, they only depend on the angle, not how big your triangle is. But if you know some side of the triangle, then you can know all of the other using these values. So sin, cos and than really capture the uniqueness I was talking about!

---

Now the applications. I memorized these as the "divide by C" rule.

The Pythagorean theorem says thar A^2 + B^2 = C^2.

Divide by C^2, and you get sin(a)^2 + cos(a)^2 = 1.

Divide by cos(a)^2, and you get tan(a)^2 + 1 = sec(a)^2.

These are all the Pythagorean theorem on disguise.

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

#625

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…

Interesting interplay between 2 and 3. Why does representation matter so much if these are just human-created constructs? Genuinely interested to know how the same person had both of these epiphanies.

A construct being human-created doesn't mean it isn't important, or that we can simply ignore it. Just means it can be changed, unlike a law of nature, for instance.

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

#626

Earlier quoted context omitted.

Surely the burden of proof should be on the side making the claim?

I’ve in general grown somewhat averse to the “burden of proof points in some direction” line of thinking. They are both making claims. (And I think usually most people are making some sort of claim, unless they are just nitpicking). One is claiming that they remember a study — pretty vague, and easily proven (as far as we can tell at least) by just showing us any study. The other is claiming that that study doesn’t r…

Most studies in this reference class (social science) don't replicate, so I'm fine with that being the default assumption.

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

#627
post #237

The power of follow ups (especially in sales) One thing which held me back for a very long time was not following up with people who didn't show much interest initially. I wasted so many good leads thinking it is impolite to follow up with people after contacting them once. My whole life changed once I understood the power of follow ups and understanding that most people are so busy that it takes at least 6 reminders…

Agreed. When I was doing sales, I would follow up with people seven times before they replied. I used to feel bad until I realized that it worked, then I just automated that part and didn't think about it further, the leads once they replied were sent to my CRM where I could then set them up on a call or some other action.

This reminds me of the parable of the widow and the unjust judge from Luke 18, where the widow perseveres in asking the judge for a judgement in her favor and the judge eventually accedes because he's so tired of seeing her.

(The point of the parable, as I understand it, is not "One Weird Social Engineering Trick That Will Always Get You What You Want!!!11" but rather that we should persevere in prayer and petitions to God because, if even the unjust judge was eventually moved, how much more likely is our heavenly Father to grant us our heart's desire because he isn't unjust like the judge. This is an example of an "a fortiori" argument, https://en.wikipedia.org/wiki/Argumentum_a_fortiori , which are fairly common in scripture.)

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

#628

Earlier quoted context omitted.

This is a great way to understand complex, new-fangled technologies. Ask "what manual process does this speed up"?

Okay, I'll bite: What manual process does ChatGPT speed up?

Googling

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

#629

Basic music theory. Almost no one I encountered bothered to actually explain anything. They simply regurgitated things and I guess expected me to somehow intuitively understand something or other.

Oh my god. Music and photography are my two pet peeves. They have their own twisted vocabulary for everything that surely exists for historical reasons, but might as well be purpose-built to obstruct polymaths from connecting their concepts to other concepts in other fields. My single largest goal when I'm teaching, is to find an appropriate analogy to a concept that my student already grasps, and bridge it to the ne…

While I agree with your goal of finding analogies when teaching new concepts, I think your first paragraph is a pretty unsympathetic take on music theory. (I don't know anything about photography.)

Music theory is descriptive, not prescriptive. Is it any surprise that something we had to invent a whole new symbolic notation for is difficult to connect to concepts we can describe in natural language?

If you want to go really deep into the philosophy of music, to understand it from "first principles" so to speak, I highly recommend Leonard Bernstein's lecture series "The Unanswered Question" - https://en.wikipedia.org/wiki/The_Unanswered_Question_(lectu... (available on YouTube).

To paraphrase Bernstein's comment from his book "The Joy of Music": we need to stop comparing Beethoven to grassy fields and mountain streams. A "major seventh" or a "plagal cadance" are themselves the description of those qualities. By all means use music as metaphor, but when you're trying to describe it you're going to be using terms specific to its domain.

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

#630

Earlier quoted context omitted.

Really? I live in Japan but am not Japanese. I speak Japanese and have many Japanese friends. I’d feel quite different about joining a hiking group that was 100% Japanese as opposed to one that had a mix of Japanese and non-Japanese people.

I don't have experience with Japan. But if I were in an English-speaking country I'd not give it a second thought.

An English speaking country like Ireland? Or an English speaking country like Jamaica, Nigeria or Pakistan?
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