BMI: slim but heavy bone||muscle

Multiple people have told me that if my BMI is close to the upper limit of green zone, then given my body shape I must have heavier bones or muscles. I usually dismiss them, insisting that I want a better BMI.

In hindsight, I realize these individuals are not uneducated, speculating or flattering. They know me reasonably well. Their words actually mean something.  Now I recognize that

  • if your bones are heavier than other people’s, then it’s probably a sign of better bone density
  • if your muscles are heavier than other people’s, then it’s a pretty good thing. Muscles burn more calories.
  • ^^ an athlete may have higher BMI due to denser bones + more muscles

My target weight is 64 kg. If it means sexual difficulties, losing bone density/muscle, or (like grandpa) losing taste in good foods (fish, meat, fruits,,,), then that target is an unhealthy target, not a worthwhile target.

Writing this bpost, I feel the 64 kg target is moving further and further away, but this sentiment is not based on facts.

BMI is one of the the most important single_indcators of overall health, but any single_indicator is wholy inadequate, misleading and can be detrimental if used exclusively. Analogy:

  • choose a car purely based on sales
  • choose a husband purely based on income
  • choose a school purely based on ranking
  • choose a major purely based on starting salary survey
  • choose a house purely based on school district
  • choose a SWE candidate purely based on hackerrank

##[23]count`kindness received+given

k_my_kindness

Trigger for this bpost — “Keep a log of all the kind acts you do in a particular day” — A Positive Psychology trainer (Edgar K. Tham) suggested in his training hand out.

Trigger for this bpost — I see myself as a kind person, though my son thinks I’m unkind to customer service staff.

Each “thinking person” has a yardstick of kindness that’s slightly different from the mainstream yardstick. The unthinking person is easly influenced by presentations of kindness to strangers or customers, but these are far from the most important kindness.

  • kind to family .. Perhaps the most important aspect in reality
  • kind to self .. A missing element in many yardksticks is the Question “Is the person kind to the self. Does she like herself?”
  • kind to coworkers .. Are you kind to yur coworkers? Look at Larry/Josh vs deMunk
  • kind to rivals, competitors, frenemies
  • kind to charities or strangers seeking help .. “easy” for the celebrities
  • kind to customers .. For an employee in any people-facing job, I think it’s easy to be kind to his customers/users, because he is trained, paid (and monitored) to do so. Negative feedback (complaints etc) on unkind gestures is prompt, recorded, and analyzed with plenty of guidance, so he will receive plenty of “support” to correct his behavior.

 

electrical wiring: earthing[green]4metal casing

— based on https://www.bbc.co.uk/bitesize/guides/z886b82/revision/2

plugs:

The inside of a plug showing the positioning of the earth, neutral and live wires, as well as the fuse and cable grip.
Live wire Copper wire coated brown along which the current enters the device. This is the wire that is at 230 V and is connected to the fuse.
Neutral wire Copper wire coated blue that also connects to the cable in the wall and completes the circuit. In contrast, the earth wire doesn’t complete the circuit.

Without the earth wire, if a fault occurs and the live wire becomes loose, it could touch the outer casing of the electrical appliance. The next person who uses the appliance could get electrocuted.

An electric cooker with the wiring section magnified to show the live, neutral and earth wires as well as the mains power. The earth wire is also connected to the cooker's casing.

The earth wire is therefore connected to the outer case and is attached to a metal plate or water pipe underground. As the wire is made of copper, the earth wire provides a low resistance path to the ground. In the event of a fault, the large live current passing through the case earth wire will follow this path to the ground instead of passing through a person [standing on wet ground without insulating shoes], and will blow the fuse rendering the appliance safe.

Some appliances, such as vacuum cleaners and electric drills, do not have an earth wire. This is because they have plastic casings, or they have been designed so that the live wire cannot touch the casing. As a result, the casing cannot give an electric shock, even if the wires inside become loose.

lifelongXX=hallmark@ effective student: R.Xia

I don’t remember his exact words, but R.Xia was the first among my friends to point out this notion. He had read many articles on the different learning methods/attitudes vs their outcomes and he singled one one key factor — the really effective students are not always the smartest, but they keep learning, well into adulthood. This is an informed view, rather than an unbiased perceptionOfReality. Through this tainted glass, I see numerous facts and evidence that reinforce my opinion.

Similarly, I tell my son “learning is 积累” .. 日积月累.

— NUS website says

“Graduates are expected to be agile and adaptable in the post-pandemic world order. In training students to connect the dots across diverse disciplines, NUS has embarked on educational innovations centered on interdisciplinarity and experiential learning. The establishment of the College of Humanities and Sciences and the College of Design and Engineering has allowed NUS to deliver future-focused interdisciplinary education at scale, while offering students flexibility to pursue multiple pathways and specializations. The result: an education that offers both breadth and depth.”

I think this basically means a student can take modules from (far) outside his department and his major. In NUS, I took elective modules in business management, sociology etc. There is no depth in my learning, even though the courses included lots of group assignments, real world case studies, long reports, presentations,,,

I think this breadth can affect depth. In my opinion, depth (more important than the “breadth”) and real insights usually /grows/ from lots of self-directed reading and active, deep thinking (blogg). If you read enough about a subject, and ask some tough questions, attempt to form your opinions, validate them with data and observations, get some peer review, then [1] you have a chance to develop some depth. But it won’t happen during the 4 years in college. I believe lifelong learning is a must.

[1] For STEM subjects or language, you also need lots of practice.

My economics learning is perhaps one example. My math learning might be another example.

— recreation, retirement ikigai.. lifelong learning in an academic subject or a skill [arts, sports,,,] could provide an ikigai

opamp[def] response2events

adapt [naturalSelection] to environment||nature is another perspective.

An opamp is largely a black box system. In different contexts, the opamp can be either highly sensitive or well-regulated. Its response to external events can be unpredictable but we always aim for calm composure.

Improvement methods act like signals to the opamp. When the opamp is responsive it can respond to these signals successfully.

  1. eg: One of the best illustrations of “opamp” is ED medicines. Some guys would experience better improvements than other guys.
  2. personal xp: With BMI, my diet techniques produced visible and sustainable results in 2018-2019 period. No such results in other phases of my life.
  3. personal xp: With stretch, various improvement methods/solutions all fail to produce any visible response.
  4. personal xp: with cholesterol, diet and exercise failed to produce sustainable and sufficient improvements, so I had to take medication.
  5. personal xp: English listening .. In 1991-1992, I was unable to understand BBC (or everyday conversations). After more than a year of /immersion/, I was able to follow BBC. The immersion is a sea of “signal”. I think my immersion was very long because my opamp was slower than my sister or other students of my age. I can see that many male Chinese students have even slower opamp due to older age.
  6. .. English speaking .. was a slower, less spectacular success story. Opamp is again my brain (the oral-linguistic part). The signals are the interactive environments where I practice with other speakers. For many years I struggled and was hardly comprehensible and rarely articulate, but I persevered and found new signals to stimulate my opamp and improve the positive feedback loop. I figured out what expressions are less bookish, and I focused on specific sentence structures just for oral communication. I also learned to rephase what I hear.
  7. eg: English essay-writing .. during my JC year 1, I made progress but still failed to pass. Over the decades since that year, my English writing has been improving.

In the face of challenging /events/, my “system” often reacted well. (Off-topic: a leader deals with lots of chellenging events and must remain calm.)

  • eg: Boy’s defiance triggered opamp responses in both parents. However, I was able to sleep, stay calm with blood pressure stable, keep low voice…
  • 2009 humiliating bonus.. I didn’t go home but decided to focus on my work projects

— Beyond the personal opamp .. The opamp metaphor is more appropriate for the body. In other examples, the opamps are not the body but other people:

  • eg: boy’s attitude on math .. I have tried so hard to change his attitude.
  • eg: boy’s Chinese reading habit ..
  • eg: c++ interviews .. were hard to crack for years until I started cracking them in 2017.

praises/Proud@My English proficiency

 


— praises on my oral English proficiency .. Over the years, many people (who had not seen my writing yet) say “You speak very good English.” Almost never flattery. When I mention that I still struggle from time to time, some of them would add “Of course English is your second language, so you would be more comfortable in Chinese. It’s natural to struggle in a second language.”  — This fact should NOT diminish my sense of achievement, self-esteem and pride.

Those praises together are a remarkable achievement even though the yardstick seems to be a lower yardstick — a yardstick for foreigners. The important thing is, I am able to use English effectively. Whether I’m more effective than a native speaker is insignificant. This is not a contest. Effective usage is the only yardstick, and accent is a small factor.

I could give the same sincere praise to my sister, some of my Indian colleagues and some European guys. They are very articulate.

— (historical zoom) Q: How critical was English during the early 2007 adaptation/adjustment [actually a struggle] to living in USA?

Luckily, in early 2007 my English proved adequate, thanks to the formal education in SG and on-the-job training in SG, and my years of self-practice in emails, in-depth discussions with non-Chinese friends.

From early 2007, I had no difficulty reading (any tough material) and .. listening [my traditional weakness]!

I was already a fairly fluent speaker in 2007. No one said I had a strong accent like half the subcontinent coworkers, whose /oral/ English was good enough for an offshore worksite. My Singapore/Malaysia/Hongkong accent was mild in contrast to millions of immigrants speaking English “dialects” of Eastern Europe, middle east, central Asia, S.E.Asia,,,,

In each ethnic group, some 5 to 20% [1] of the immigrants speak decent English, usually due to education, but conceivably due to everyday practice (without education) or untrained talent — consider my sister and my wife.

[1] Among the Mexican immigrants, that percentage is lower because proportionally many of them came in without a work visa or student visa.

Q: how did my wife cope with English?
A….

I have hitherto left out proficiency in writing. Not an “everyday” proficiency, more of an advanced skill. Challenging for most immigrants. Even native speakers (esp. the less educated) struggle with many non-trivial tasks. Writing is a trained skill like painting, piano, public speaking, …. Training takes years and generally, I learning English over the prior decades since 1991. Now in 2022, I consider myself “well-trained” as a writer, when benchmarked to the average native SPEAKER.

— One of my first milestones — After my farewell letter to Catcha colleagues, a short, young Indian girl colleague turned to me and and praised my writing. She was not technical but an editor of online content. She doesn’t know me well and I didn’t ask her opinion on my letter.

— Then I crossed a second milestone — Kyle said my English is better than a lot of Americans.

My discussions with Kyle was often conceptually complex … so vocab is important. I explained that I’m an intellectual type, like my dad.

Intern_inverse: %%pattern@mistake

On 9 Feb, I asked our intern “Am unfamiliar with the calculator in smartphones. How do you calculate the inverse of a number. Inverse of 10 is 0.1…”

Our intern hesitated then showed me how to use the_number^-1 on my phone. Impulsively, I assumed he misheard my question, so I said “No that’s different…”

  • the obvious fact that the result in front of me was correct didn’t help me pause. (I should have paused!) In fact the result looked like “2- the_number”, so I didn’t double-check the result.
  • I had a subconscious assumption about interns in general. Similarly, I have assumptions about nationalities, professions.

color text @dark background: git-bash/conEmu++

Context: Color output from q[ls] and many git commands… Bad text color on dark background affects efficiency, stress build-up, and vision wellness

  • xp: white background .. I once configured my tool to use white background, with color text
  • xp: monochrome .. I once configured my tool to use monochrome… completely fine
  • xp: increase display hardware brightness/contrast but this affects other applications
  • xp: set default text size to 10 or 11
  • xp: zoom .. (ctrl/plus, Shift optional) in git-bash, but not available in conEmu
  • Tip: Dracula is better in git-bash than anything in ConEmu

== git-commit (I would say git-diff is more important than git-commit or non-git commands) Unfortunately, most color schemes are eye-hurting for git-commit message editor. Only the following  choices come /close to/ acceptable.

choice: ConEmu..SolarizedLuke: most acceptable overall, but not as good as git-bash Dracula

switch` language/IME @win10 #winKey+space

These are important issues to my usage [blogg, email,,,]

Q: what if too many hotkeys for the same purpose, causing accidental switch?
A: in theory yes, but not in practice

— to configure, typingSettings (bottom) ->advancedKeyboardSettings -> inputLangHotKeys. This applet shows two pre-installed hotkeys, which work the same way:

  • pre-installed default: winKey + space
  • pre-installed default: alt + shift .. harder to remember