Live data from Hacker News

Against 3x Speed

perell.com

231–240 of 353 posts

Re: Against 3x Speed

#231
I think every serialized media is presented at a set speed, but that speed is rarely a carefully determined value. It’s just an artifact of the creator’s speaking or editing characteristics.

Which leads me to personally conclude: there is probably no single correct speed and the author likely hasn’t picked an ideal speed either.

Speed up or slow down based on your personal needs.

Re: Against 3x Speed

#232
Reminds me of my shelf of O'Reilly books.

Each one goes along side with a weekend or week of reading and learning. A few of them were something I needed to learn to get something done for work. A few more were things I learned for personal use.

But the majority of them, I just read because "I might need to know more about" something. Building Microservices? Java 3D Graphics? Python for Data Analysis?

Read at least a couple chapters of each. Wasted time for sure.

Re: Against 3x Speed

#233
I too fall into the trap of listening to things on sped up. But is it 2x speed and YouTube. Anything that I’m actually trying to learn ilI will slow down and rewatch. But there is so many crappy videos on YouTube I feel compelled to watch most of it on 2x speed to find the good ones.

And unfortunately this habit gets strengthened, because plenty of people thing you are knowledgeable when you can pull out random bits of trivia you learned in YouTube videos, or are grateful when you can reference a YouTube video to them on a topic they are interested in.

Re: Against 3x Speed

#234

I'm impressed more by the comments than the article itself. Some people insist they make progress and listen 3x, but nobody showed any practical measurements of own skills. A personal example: I used to listen to a famous linguist, and everything seemed nice and clear, but then I decided to go in details on one particular question (I think accentuantion), and opened his book. It was like if you showed your programmin…

This lends credence to the educational reform that I always found the most compelling: kids/people should be reading the chapters for the lecture ahead of time as their homework, and doing the practice problems in class instead of a lecture, so the teacher can actually help students work through problems (rather than parents who don't know the material). A brief review/lecture at the end to tie together all of that p…

This is called a flipped classroom: https://en.wikipedia.org/wiki/Flipped_classroom

Re: Against 3x Speed

#235

Earlier quoted context omitted.

This is a core problem in education, BTW: people, regardless of age, are essentially unable to properly evaluate whether they actually learned something from e.g. a course they just completed, and what helped with these learning effects. Those after-course feedbacks mostly just reflect whether they liked the presenter and/or the group. This of course has problematic consequences if that after-course feedback is used…

Kind of a super power of mine is that I am very good at knowing whether or not I actually know or understand something. This made university pretty stressful: it was always on my mind how little I had yet retained and understood from my current courses; i'd only be happy when grinding material through my brain on my own (i.e. actually learning).

I have the same thing! I've always found it deeply perplexing to see people that don't understand something but think that they do. Particularly, because when you actually understand something, it's so obvious.

When I'm learning something, I have kind of a map in my head. I can just accurately keep track of the parts that are still fuzzy. In any subject, unknown unknowns are what will really trip you up. I think a big part of it is that I can use tiny context clues to predict and calibrate my understanding. Often, just knowing the NAME of a concept is enough for me to figure out what it's going to look like. (I did that with feynman path integrals for example.) SO I absorb those context clues and use them to try to keep some idea of what I DON'T know yet in that map.

In fact, I think it's closely tied with prediction in general. I remember in math, I'd take what we knew, or had been learning, and just take it to the absolute limits of my knowledge, or find it's absolutely limits until the idea breaks. I did that constantly. In doing so, I could often predict the next section of study. I think that habit gives you lots of practice in self-assessment of what you really know.

Conversely... when it comes to complicated subjects of complex systems like history/economics/geopolitics, where there is relatively poor feedback on "correctness" of ideas, I feel like ALL of my opinions are completely unfounded bullshit. People still seem to value them, but they have such a tenuous grip on reality.

Re: Against 3x Speed

#237
post #174

I'm impressed more by the comments than the article itself. Some people insist they make progress and listen 3x, but nobody showed any practical measurements of own skills. A personal example: I used to listen to a famous linguist, and everything seemed nice and clear, but then I decided to go in details on one particular question (I think accentuantion), and opened his book. It was like if you showed your programmin…

> Lectures are proved to be a bad way to learn things. This may be, but studies also show that you should review the material before the lecture so that you can engage the lecturer . I can count on a single hand and not use all the fingers the number of students I have taught who always reviewed the material before I lectured on it. Unsurprisingly, those students absolutely sailed through my class with very high grad…

Hum, if people are engaging, it's not a lecture. Discussions are much more effective than lectures.

What I've never seen is a comparison between a pure lecture (like it would be on video) and reading a book. Those two fit the same stage on an effective "get pointed to the content, get the raw content, refine it with people and the real world" learning process.

Now, about your question, I have no idea :)

Re: Against 3x Speed

#238

I'm impressed more by the comments than the article itself. Some people insist they make progress and listen 3x, but nobody showed any practical measurements of own skills. A personal example: I used to listen to a famous linguist, and everything seemed nice and clear, but then I decided to go in details on one particular question (I think accentuantion), and opened his book. It was like if you showed your programmin…

At conferences, people will say they liked and learned from talks that were complicated and largely incomprehensible, and that they found trivial and boring the talks that managed to explain the thing well enough that it was actually understood.

Re: Against 3x Speed

#239

I'm impressed more by the comments than the article itself. Some people insist they make progress and listen 3x, but nobody showed any practical measurements of own skills. A personal example: I used to listen to a famous linguist, and everything seemed nice and clear, but then I decided to go in details on one particular question (I think accentuantion), and opened his book. It was like if you showed your programmin…

100%! This reminded me of a similar lesson beaten into us _repeatedly_ in college. I would study for a test and feel like everything was crystal clear. Then i walk into the exam and get absolutely destroyed by stuff i thought i understood.. over and over again. It was (unfortunately) a common experience.

Seeing the answers afterwards, they usually involved facts i knew applied in a way i could not. That experience convinced me that your internal assessment of how well you understand something can be wildly off without an objective yardstick. Like nothing teaches epistemic humility quite as forcefully as getting rekt in an exam.

Re: Against 3x Speed

#240

I'm impressed more by the comments than the article itself. Some people insist they make progress and listen 3x, but nobody showed any practical measurements of own skills. A personal example: I used to listen to a famous linguist, and everything seemed nice and clear, but then I decided to go in details on one particular question (I think accentuantion), and opened his book. It was like if you showed your programmin…

100%! This reminded me of a similar lesson beaten into us _repeatedly_ in college. I would study for a test and feel like everything was crystal clear. Then i walk into the exam and get absolutely destroyed by stuff i thought i understood.. over and over again. It was (unfortunately) a common experience. Seeing the answers afterwards, they usually involved facts i knew applied in a way i could not. That experience co…

I also had a similar experience in college, but I'm having trouble understanding what the lesson you learned was. Did you eventually improve?
Post reply on HN