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Coolest Things I Learned in 2018

perell.com

131–140 of 148 posts

Re: Coolest Things I Learned in 2018

#131

Earlier quoted context omitted.

I don't really buy this as a real difference. I suspect that the memorization is just brute force via flashcards or practice and that's more straightforward for people to 'study'. The other method of deriving and actually understanding is generally harder and usually relies on existing knowledge you learned in previous grades (it gets harder to use that method over time if you haven't been). It's also something the t…

> The other method of deriving and actually understanding is generally harder It's fallacious to think that one type of action can be harder than another type of action, when within each class of actions there is a wide variation in difficulty. Thinking from first principles is not harder than memorization when the first principle is Newton's first law and the memorization is every chemical component of cellular meta…

I don't really disagree, but I think you've set up a bit of a strawman - in the general case I think one is more often harder than the other. You can obviously look at extreme outliers for contradictory examples, but the general case is more interesting/common.

There are also some things that are harder or easier for people because we have innate hardware for certain things. Recognizing facial expressions (or really interpreting any sort of visual input) compared to doing complex math in your head. The Type 1 vs. Type 2 systems from thinking fast and slow - some things are generally easier for humans compared to other things.

Re: Coolest Things I Learned in 2018

#134
post #124

Earlier quoted context omitted.

> I simply brought up China's remarkable economic success, and you responded with a laundry list of "China Bad!" that mostly had nothing to do with economics. You're right that I insufficiently explained what I meant with the links. I'll break down how I felt the list had economic relevance: [0][1] ~55mm people died or were killed during the Great Leap Forward and the Chinese famine likely stemmed from it as well. Lo…

As long as we're playing whataboutism... the Great Leap Forward occurred roughly 10-20 years after WWII, which led to a similar number of deaths in Europe. Without looking up data, I think it's safe to assume Europe's economies contracted substantially during WWII as well. So there's plenty of "clear failure" to go around. At best, one might argue that the US recovered from WWII faster, because it was the only major…

> As long as we're playing whataboutism...

I'd prefer not to.

> Without looking up data, I think it's safe to assume Europe's economies contracted substantially during WWII as well... At best, one might argue that the US recovered from WWII faster, because it was the only major nation left undamaged.

I'd argue you can't compare Great Leap Forward with WWII. The GLF was domestic policy (like Holodomer) and ultimately the responsibility of the government at the time. WWII was an international war, which definitionally is not domestic policy. Europe indeed did experience contraction coincident with WWII [0]. The United States had a surge of economic activity at this time, nearly doubling GDP during the war [1].

> As for the argument about the impact of concentration camps... the US currently has 2.3M people incarcerated with a third the population of China.

You're not comparing similar categories here. US prisons hold people convicted of crimes as determined by a constitutional judicial process. More than 50% of the prisoners were sentenced due to commission of a violent crime [2]. Yes, the prison system needs substantial reform, but I find it hard to believe that ~1mm convictions are illegitimate. Meanwhile, concentration camps imprison people without charges filed or intent to file charges (a violation of Article 9 of the UN Declaration of Human Rights). I'm not comfortable drawing an equivalence between a legal process and a clear breach of human rights.

> If you're arguing that this is somehow economically relevant

I never made such a claim. You requested "a measurable scale" of human capital and rights violations, so I attempted to quantify it with the number of lives impacted.

> I don't think the argument that "Countries with better infrastructure, physical, legal, and otherwise, should enjoy higher rates of growth" goes where you want it to go. Just about any "developing country" has a far higher rate of growth than the mature western nations with the best infrastructure.

My statement should have included the phrase "ceteris paribus". This paper [3] has been cited ~450 times, so I assume it reflects mainstream economic thought.

"The paper finds that IPRs affect economic growth indirectly by stimulating the accumulation of factor inputs like R&D and physical capital. The positive effects of IPRs on factor accumulation, particularly of R&D capital, are present even when the analysis controls for a more general measure of property rights"

> Speaking of developing nations, Argentina is not the example you want it to be, either.

Are you referring to this page [4] which states the following?

"Beginning in the 1930s, however, the Argentine economy deteriorated notably. The single most important factor in this decline has been political instability since 1930, when a military junta took power, ending seven decades of civilian constitutional government. In macroeconomic terms, Argentina was one of the most stable and conservative countries until the Great Depression, after which it turned into one of the most unstable. Despite this, up until 1962 the Argentine per capita GDP was higher than of Austria, Italy, Japan and of its former colonial master, Spain."

The source confirms that Argentina has a long history of economic difficulty and points to a chaotic legal infrastructure as an origin. Comparing the GDP per capita to other nations is valuable, as it indicates 1. the early strength of the Argentinian economy; 2. the length of time it took war ravaged nations to recover. However, we should also consider the 'missing' economic growth. Had Argentina enjoyed greater levels of political stability would the economy have maintained its trajectory? If so, Argentinians today enjoy less consumption than they would have otherwise.

> As an aside, in Prisoners of Geography, Tim Marshal argues that Argentina and other South American nations are ultimately limited...

Without having read the book, it sounds reasonable. Along those lines, there's a claimed relationship between a nation's natural resources known as the resource curse [5]. Perhaps this, too, has contributed to Argentina's economic woes?

> Western technology, moreso than western values, has led to the rise of not only China, but dozens of other nations as well... The technological acceleration of the past two centuries has been widespread, with widespread impacts.

I think we agree on this, but we don't see eye to eye on the origins of this acceleration. My understanding is that the acceleration in growth rates originated in Western Europe as a result of the Enlightenment [7]. Could the economic acceleration have occurred in other ways? Certainly it's conceivable, but in millennia of history it didn't happen any of those ways. So what were the values of the Enlightenment?

"In France, the central doctrines of the Enlightenment philosophers were individual liberty and religious tolerance, in opposition to an absolute monarchy and the fixed dogmas of the Roman Catholic Church." [6]

Those appear to be the values you identified earlier. As for capitalism, Adam Smith's Wealth of Nations helped formalize the understanding of free markets. China, itself, implements a form of capitalism [8].

> But the "western values" I started with were democracy and free market capitalism

To quote you they were "Western-style democracy, capitalism, and individualism". If you believe China has been the beneficiary of Western technology, then it logically follows that China's prosperity stems from those values.

[0] https://www.quora.com/How-did-WWII-affect-European-GDP

[1] https://en.wikipedia.org/wiki/Military_production_during_Wor...

[2] https://www.themarshallproject.org/2015/03/04/how-to-cut-the...

[3] https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1465-7287....

[4] https://en.wikipedia.org/wiki/Economic_history_of_Argentina

[5] https://en.wikipedia.org/wiki/Resource_curse

[6] https://en.wikipedia.org/wiki/Age_of_Enlightenment

[7] https://is.cuni.cz/studium/predmety/index.php?do=download&di...

[8] https://www.businessinsider.com/how-china-went-from-communis...

Re: Coolest Things I Learned in 2018

#135
post #74

Earlier quoted context omitted.

'Sonder' is most certainly a word! https://en.oxforddictionaries.com/definition/sonder

Yes, Sonder is a word in German which means "special", as in the German term Sonderweg which is the German equivalent of "American Exceptionalism" ("German Exceptionalism", I suppose).

The German "sonder" referred to in this branch of the conversation (i.e. meaning special) is not a word on its own but a prefix for other words [0] (remember that germans like to build words from multiple separate parts and words).

While "sonder" itself is a word, it means something different when used on its own (without) [1].

0: https://www.duden.de/rechtschreibung/Sonder_ 1: https://www.duden.de/rechtschreibung/sonder

Re: Coolest Things I Learned in 2018

#137
post #3

> Instead of arbitrarily memorizing things, look for the explanation that makes it obvious. This is a higher learning method that I’ve always found most natural. I don’t memorize stuff, I try to understand it instead. That said, there is still great value in the classical learning model—if you don’t know the terminology of the subject it’s difficult to reason about that subject.

Yep. People often ask me how I remember so much stuff and I really just remember a skeleton of knowledge that I reconstruct when needed. Like I know a general ordering of historical events for example and a few years, but I don’t remember the year everything happened. And I don’t even memorize the order but rather causal connections. If someone asked me when something happened or who the president or the king of England was, I try and piece it together from what I know of the context.

Re: Coolest Things I Learned in 2018

#138
post #62
post #39

Earlier quoted context omitted.

I've had the same thing. It was impossible for me to remember complex mathematical equations in school until I figured out how to derive them myself. That didn't help me with integration, sadly. Same with history: years are meaningless. What's interesting is how historical events follow from earlier events and lead to later events.

> Same with history: years are meaningless. What's interesting is how historical events follow from earlier events and lead to later events. That's also how I learned what history I know. The trouble with that is not knowing how differently themed events are positioned relative to each other in time. For example, I don't know how events of political history linked to events of computer history.

Surely you can connect WWII with the early years of computer science at the very least :)

Re: Coolest Things I Learned in 2018

#140
My All-Time Favorite Writing Advice

"When you understand that nobody wants to read your shit, your mind becomes powerfully concentrated.

You begin to understand that writing/reading is, above all, a transaction.

The reader donates his time and attention, which are supremely valuable commodities. In return, you the writer must give him something worthy of his gift to you.”

— Steven Pressfield

---------------------------------------------------------

Simple Writing Tricks

One of the simplest ways to improve one's prose and to keep a reader's attention is simply to vary sentence length.

The cadence of breathing and speaking tends to mimic the frequency of the brain's ability to process words and sentences.

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