I Did a 5 day 121.5 Hour Water-Only Fast: Here’s How It Went and What I Learned

About a month ago I did a 121.5 hour (5+ days) water-only fast and it was such an intense, insane, comprehensive and unique experience, that I decided to write an article about it. I monitored a lot of my metrics closely, did a blood test right before the fast was about to end and then did a control blood test 2 weeks later and I found out some interesting things that I thought were worth sharing.

Reasons

I’ve been doing intermittent fasting (16:8) everyday for 5 years now, main reason being that by doing so, one can achieve a lot of the benefits a prolonged fast (2+ days) can give you, without doing the actual prolonged fast itself. 

So naturally, I thought I would like to do a prolonged fast at some point too, as intermittent fasting or supplements mimicking benefits of prolonged fasting like resveratrol, fucoidan, metformin, spermidine etc., cannot compare in result intensity with what a real prolonged fast can do.

I did several 1-day fasts in the past and two 2-day fasts as well and wanted to try an even longer one. I decided to go for a 5 day fast mainly because of these reasons:

• Autophagy (cellular cleanup): during a prolonged fast, our bodies recycle all sorts of cellular ‘junk’ which isn’t really touched in times of nutritional abundance, like misfolded proteins or dysfunctional mitochondria. These can cause all sorts of problems like inflammatory responses from our immune system etc. 
• Sirtuin activation leading to DNA “repair”: Sirtuins regulate what a given cell is producing by switching the production of a given ‘thing’ on or off. They are basically little cellular molecular machines which physically turn genes in our cells on and off. The information theory of aging suggests, that as we grow older Sirtuins do not perform this function as well as they should and our bodies globally decline. A skin cell that is supposed to produce only skin cell proteins now maybe produces proteins that a bone cell should produce and vice versa. When our bodies are in ‘repair mode’ due to the lack of nutrients, Sirtuins are especially active.
• Stem cell activation, immune system reset: During a prolonged fast, the body also gets rid of dysfunctional immune cells, boosts immune stem cell production and replaces these cells with new well-functioning ones, effectively leading to an immune system reset.
• Reduced inflammation: due to ketosis (energy production from fat) and autophagy body inflammation is reduced
• Surge in human growth hormone levels (HGH): during the fast, HGH is overproduced up to 5 - 10 times more compared to our baseline values. HGH is a hormone which mobilizes our body’s resources to repair all kinds of tissues. While we fast, not much is going on in this regard, because we lack nutrients to do the repair, but after we reintroduce food into our system, adding supplements like protein isolate and collagen peptides, the lingering overproduced HGH then utilizes these to supercharge the repair process.
• To give my digestive system a break: just in general, as I will write later, giving the digestive system a chemical and physical break is a return to normalcy.

The mysteries of being perceived as a native speaker

I was working with the Airport police yesterday with an asylum seeker from Afghanistan. I spoke Farsi, she spoke Dari. I had heard Dari before and knew this sort of Farsi-Dari communication was possible and as no Dari interpreter was available, I was called in. I knew it would be hard but I have to admit, I did't expect I'd have so much trouble understanding her. 

After about 20 minutes the lady said in Dari, "let me try to speak in English, because Dari seems to be hard for you to understand". I automatically thought, well.. my Farsi is poorer than I thought. 

The thing is, if you speak Farsi really well, in theory you should be able to understand Dari pretty well too, so I thought it was clear the problem was my Farsi and not the fact that I didn't understand Dari too well. 

I continued speaking in Farsi and she spoke in English. After about an hour she asked: Where are you from? I said "Here." and pointed to the ground. To my surprise, she asked: "You are not from Iran?" 

Two third tones rule in Mandarin.

An interesting thing happened to me yesterday. For the first time since I started learning Mandarin - and that would include 3 years of demanding studies at our university's Chinese department, 5 years of complete immersion in Taiwan and 10 years of working as an interpreter for the police, judiciary, prosecution.. all in all a daily grind of 17 years..  I managed to 'feel' and not 'know' that a 3-3 tonal combination in Mandarin should be a 2-3 combination. 

In other words, I 'felt' and not 'knew because I had learned the rule', that when there are two third tones in close proximity in Mandarin, that it "can't be like that" and that the first of the two tones must be pronounced as the second tone. (The full rule is a bit more complex, but for the sake of simplicity, this is what I want to go with for now). 

Before that, all that time, the whole 17 years, since I started studying Mandarin, when I spoke Mandarin, I had to pay attention to what tones would follow in my speech, and all that time when a 3-3 combination was approaching, I had to consciously 'initialize' the 3-3 > 2-3 rule and pronounce the combination as 2-3. 

Even after 17 years it was still a bit difficult and a bit tiring in the sense that it cost me my attention, and it put slight pressure on the syntax and the overall sequence of thoughts around the 3-3 point in my speech. 

Yesterday, as a form of practice, I was reading out loud a transcript of a podcast with a native-speaker friend. We've been reading it regularly for about 2 weeks now and suddenly I came to a point in the text where "Alice很努力" appeared and because I was reading too quickly I went on to read it as "Alice hěn nǔlì " and I said... "Wait a second, that can't be." 

Analysis of Lion-Eating Poet in the Stone Den 施氏食獅史

The following is my short analysis of the famous Lion-Eating Poet in the Stone Den (施氏食獅史) poem. 

About the poem:

"Lion-Eating Poet in the Stone Den" (Chinese: 施氏食獅史; pinyin: Shī-shì shí shī shǐ) is a short narrative poem written in Classical Chinese that is composed of about 94 characters (depending on the specific version) in which every word is pronounced shi ([ʂɻ̩]) when read in present-day Standard Mandarin, with only the tones differing.[1]

The poem was written in the 1930s by the Chinese linguist Yuen Ren Chao as a linguistic demonstration. The poem is coherent and grammatical in Classical Chinese, but due to the number of Chinese homophones, it becomes difficult to understand in oral speech. In Mandarin, the poem is incomprehensible when read aloud, since only four syllables cover all the words of the poem. The poem is more comprehensible—but still not very intelligible—when read in other varieties of Chinese such as Cantonese, in which it has 22 different syllables, or Hokkien Chinese, in which it has 15 different syllables.

Source: https://en.wikipedia.org/wiki/Lion-Eating_Poet_in_the_Stone_Den

My Analysis

Chinese:

《施氏食獅史》

石室詩士施氏，嗜獅，誓食十獅。
氏時時適市視獅。
十時，適十獅適市。
是時，適施氏適市。
氏視是十獅，恃矢勢，使是十獅逝世。
氏拾是十獅屍，適石室。
石室濕，氏使侍拭石室。
石室拭，氏始試食是十獅。
食時，始識是十獅屍，實十石獅屍。
試釋是事。

Can anyone learn a foreign language?

Polyglot Conference Berlin 2015

A student writing his paper on "Learning a language as quickly and efficiently as possible" sent me an email and asked me these two questions:

1) Do you think being a polyglot is something you're born with or a skill you can develop with practice? And why?

2) What is, in your opinion, the most important tip, for learning a language quickly and efficiently?

I often get these questions asked actually and as my answers tend to be a bit non-conventional and longer, no matter how hard I try to simplify them, I decided to post them here on my blog for anyone interested.

I thought about both of these questions many times in my life and my opinion has evolved, so I might add or change something in the future again, but right now I think that:

1)

If there is such a thing as talent for learning languages, something that people are born with and cannot be learned or acquired, it consist of:

a) inborn pattern recognition ability/general intelligence

b) time it takes for a concept (word, sentence structure, pattern, sound etc) to get stored in one's long term memory 

c) persistence

For instance, there are several techniques that can help you improve your memory, pronunciation, time management, motivation etc. that can be learned. There are also good materials that can explain language concepts very well, good grammar drills etc., but be it as it may a) and b) cannot be improved on by a lot, or takes a much longer time in my opinion, and therefore if there is such thing as talent, it's probably related to this.

Additionally c) I feel like is just a quality, that is necessary in general and maybe even more so when it comes to learning languages because this skill takes longer to show results in my opinion.

2) 

The one single most important tip probably would be to allow the mind to become organically and intrinsically very keen on learning the language you want to learn. The statement is a bit fuzzy, but simply put I would call this "sheer organic/intrinsic interest and the organic/intrinsic will to improve" or knowing the difference between the mind where it 'wants to learn (very much)' and where the mind 'has to be taught'.

For instance, force a child to learn the letters of the alphabet and it will take long. Give the same child an iPad and allow it to hang out with friends on some app and apart from learning all the letters, that child will probably even learn how to change settings on that iPad you had no idea existed.

The same works for adults in my opinion, although adults probably really do not learn as quickly as children do, even when accounted for the greater amount of knowledge and experience they have to make their task easier.

It seems to me the brain is naturally apt at absorbing information/concepts at great speeds, it just has to be incentivised correctly. Same with language learning. If you have your mind set correctly and have the correct incentives, I believe you can learn anything/any concept, like Mandarin Chinese, Quantum Mechanics, Calculus etc. and learn it quickly. Obviously it has to be a concept that someone has learned at least once before in history, proving that it can indeed be learned. Right now, as we stand, it seems impossible to learn every single language in the world to a C1 level for instance, or understand and learn some mathematical concept that hasn't been discovered yet.

When it comes to language learning, this incentivisation can be anything from moving to the country where the language is spoken, being in love with the script or the culture of the target language, having a romantic partner that only speaks that language etc. but it all usually boils down to honest, organic deep and persistent interest. Once you have your mind set right, you will learn much quicker, will not need any motivational tricks to keep you focused and will be keen on improving and improving your own learning methods.

Why do people still believe Chinese traditional medicine woks? A few thoughts on human intuition Vs. scientific thinking.

I spent more than 5 years of my life living in Taiwan and among the many curious things that I've seen were daily scenes of the local population engaging in or with Chinese traditional medicine in one way or another. In parallel to this, for many years I've been thinking about how to more correctly think about the world so that I am not affected by my own bias, preconceptions, lack of information etc. to arrive to what a lot of philosophers have rightfully called 'truth' - which is basically another way of saying to understand what is really going on. Be it in the world of language studies, international relations, quantum mechanics or trying to more accurately understand the current state of society or predict future economic development. 

https://waitbutwhy.com/2019/09/thinking-ladder.html

Very conveniently, these two things beautifully connected in the video at the beginning of this article, the title of which translates into How can you still believe in Chinese traditional medicine? It's a video by a popular Chinese science communicator and veteran TV personality Luo Zhenyu. His work is similar in topics, scope and depth to Lex Fridman, Tim Urban or Ali Bandari. 

In it, Luo Zhenyu first admits that he does not believe in Chinese traditional medicine and then proceeds to logically, step by step, explain why and, what is equally or more interesting, explain how human thought has developed over the centuries to do exactly what I am trying to do - try to learn how to understand reality for what it really is and not what I perceive it to be.  

I've seen the video about 3 or 4 years ago and I've been always willing to go back to it and watch it again more carefully.  A friend of mine was interested in the topic but doesn't speak Mandarin and since I wanted to take notes watching this video anyway, I made a summary in English for her which got so long that I decided to publish it on my blog. 

Summary

In the video Luo Zhenyu first says, in general, that talking about Chinese traditional medicine is quite a sensitive thing in the Chinese culture and he's afraid that people will trash him. In a way, Chinese traditional medicine, he says, is almost like a religion to some. While when it comes to many other topics, Chinese can discuss and accept other opinions, when it comes to Chinese traditional medicine it very easily sparks arguments and sometimes even physical altercations and he says that it's very important to talk about why this is happening to understand something more important than the actual argument about whether Chinese traditional medicine works or not. 

愛 爱 Love Chinese character etymology and structure

A friend of mine, a western native speaker of Mandarin Chinese, who grew up in Taiwan, recently embarked on the journey of learning how to read Chinese. He sent me a few pages of a book that he is reading to help him understand the Chinese writing system better and asked for my opinion. 

A few minutes of reading it turned into a few hours of thinking, writing and research and I thought I would publish my reply to him about one specific section in this book as an article on my blog as it covers a few interesting concepts and recurring themes. 

In the introduction, the author uses the character 愛 as an example to teach his students that quote "100% (not a single exception) of Chinese words is composed of root words. (sic)". The author's writing is a bit difficult to understand, and there was context before and after this sentence that would make it a bit clearer, but what the author essentially tried to say was that with every single Chinese character, it is possible to tell what this or that Character means just by understanding what roots it consists of, which can always be seen clearly in the character itself. A simple example would be looking at the Chinese character 人 and seeing that it is a person. 

The author then proceeds to further demonstrate this with the character 愛 and as we will see, his system unfortunately falls apart. He writes:

愛 (love) is the composite of (sic):

1. Top part of 受 (receiving) which means holding hands (sic)

2. 心 (hearts (sic))

3. Bottom part of 夏 (Summer) which means walking slowly (sic).

So love is that hearts hold hands and walk slowly together (sic).

I think it should be obvious that this is storytelling and not scientific research, and I think it is also important to prove why the author is wrong. 

First of all, arbitrarily deciding that the 愛 character is formed by ripping off the top of 受 and the bottom of 夏 and putting a 心 between them because it fits our explanation is like working with a completely faulty set of equations while solving a math problem and then arbitrarily changing the resulting number after the equal sign to the one we want manually so that it fits our teacher's correct result. 

As for the etymology of 愛 I never researched this character before, I convened my little etymology research team consisting of me and my TW friend:) and this is what we found out:

First, let's make the character a bit bigger:

Just by looking at it we cannot really tell what elements/roots/radicals/standalone characters etc. the character 愛 is made of, as the author says. We see 心 xin1 - heart in the middle, we see 夊 sui1 - walk slowly at the bottom. The top however is 爫over 冖 which is clearly a simplification/fusion of something that was there before but we cannot recognise it now. 

My random thoughts on language learning

My random thoughts on language learning 

Mastery/no blind spots

Inspired by Salman Khan, while learning a particular concept, try to learn in a way that you understand everything you are learning perfectly with no ‘blind spots’ in your understanding. In other words, if tested on what you are learning, you should get 10/10, ten times in a row. It seems, that the information you learn needs to be perfectly understood by your brain so that it can turn into a solid, automatic, functional block quickly. 

Additionally, you can’t just learn something and know how it works roughly. It’s like learning what the gas and brake pedals do, but not learning what the clutch does and then in the next lesson being taught how to parallel park. Obviously I need to know what the clutch does before I can do that. 

Law of distributed burdens*

It is wise to divide brain-intensive operations into separate, more manageable chunks. While logical, it’s unfortunately not obvious and this strategy has helped me many times deal with brain intensive operations, not only when it comes to language learning. 

For instance, it is very inefficient to learn Chinese by learning how to read, write, speak and understand the language all at the same time. If you distribute the burden, say, learn how to read in pinyin first, then move on to listening, then move on to text-chatting in pinyin, then to speaking, then to reading Chinese characters, then to learning how to type Chinese characters and finally to handwrite, the task will be much more manageable.

This approach can be applied to lower levels of language learning too. For instance, it is more efficient to try to improve your pronunciation one sound at a time rather than try to improve several sounds at once. It’s for instance more efficient to consciously accept that you are not pronouncing the Spanish ‘r’ correctly and leave the improvement of this sound until after you’ve become somewhat fluent in the language. Working on both improving the ‘r’ sound while trying to improve your general fluency at the same time might be overloading the brain and actually slowing down the progress towards fluency itself considerably.  

*I don’t have a better name for this concept unfortunately but I hope it will do. 

Interesting ideas from the Lex Fridman Podcast

About two months ago I discovered the wonderful Lex Fridman podcast. It has kept me company most of my days since then and has made me pause and think about what was said by Lex or his guests and life in general really about a hundred times, thinking about some of the ideas mentioned long after the podcast was over.

As a tribute to this wonderful intellectual work, since I wrote some of the ideas I found really interesting into my little notebook, I wanted to post them as an article.

I intentionally didn't attribute individual thoughts or paragraphs to their authors (I did attribute them as a group at the end of the article) and there is a reason for that. I've been experimenting with a new concept (at least for me). I noticed that when I read an article by someone and don't know who wrote it or when I listen to a podcast and do not know anything about the person speaking, it's a completely different intellectual experience for me than when I know at least something about that person. Even seeing the picture sets up a certain preconception in my mind. When I know nothing about the person, I am much more open to that person's ideas, listen/read with much less prejudice and just have much less preconceptual junk in my mind influencing my listening in general.

When I listen to Lex's podcast (or any podcast) now, I skip the guest introduction, and let the 'ideas sell themselves'. I might read up on the guest afterwards, but not before the interview and I am trying to do this with articles I read as well (where possible). I have to say it really is a whole new intellectual experience:)

Online superorganisms

Tim Urban's Tweet

A while ago, one of my favorite bloggers, Tim Urban, tweeted a tweet in which he expressed sadness about the fact that Nature (the scientific magazine) was posting too much political content. 

As it unfortunately often is the case today, this, in my opinion innocent tweet, caused an all out war in the comment section with dozens of people attacking him. 

This being sad, but not surprising, I noticed one other thing however. Consider this tweet: (I intentionally deleted the parts that would identify the topic so that I wouldn't get accidentally flamed as well:)

"Come on Tim, you are better than that...remember when you published that multipart hagiography of Elon Musk on yours? What happened to you, dude?? Tim you're better that this. You've had some pretty yikesy takes lately. Hoping it's just a phase and I legitimately don't see the problem here. Very silly tweet. Even if that was a mistake—and I very much hope it was—you’re coming across as what you once called a zealot. ....is this performance art?"

What is interesting about it is, that it is actually not one tweet. These are 10 tweets posted by 10 different people which I pieced together. To me they legitimately seem like written by one person. 

Diverting slightly, more and more I've been thinking about the fact that people connected to the internet have turned into this huge neural network where each one of us is acting like a single neuron in that network.