The 4 bugs of quantum mechanics popular, 1.4

A misnomer collection:

2.2.1.

Wave function is not a wave. It is not a physical wave.

2.2.2.

Uncertainty principle is not about uncertainty. It is not directly related to uncertainty.

Uncertainty principle is not a principle. It is not even a physical law. Instead, it is a statistical relation. It is an inequality about the standard deviations of two conjugate variables.

2.2.3.

Superposition state is not a superposition. It is not a physical superposition. It is not a superposition of physical waves.

Superposition state is not a state. Instead, it is a property of a physical system. It is a statistical property of a variable of an experimental setup.

2.2.4.

Quantum mechanics is not quantum. It is not just about quantum (particle of energy).

Quantum mechanics is not mechanics. It is not just about mechanics. It is not just physical laws. Instead, it is a set of meta-laws, laws that physical laws themselves need to follow. It is an operating system on which physical laws can run.

— Me@2022-02-20 06:44:32 AM

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2022.02.21 Monday (c) All rights reserved by ACHK

The 4 bugs of quantum mechanics popular, 1.3

The common quantum mechanics “paradoxes” are induced by 4 main misunderstandings.

1.  A wave function is of a particle. Wrong.

2.1  A system's wave function exists in physical spacetime. Wrong.

physical definition

~ define the microscopic events in terms of observable physical phenomena such as the change of readings of the measuring device

~ define unobservable events in terms of observable events

— Me@2022-01-31 08:33:01 AM

superposition

~ lack of the existence of measuring device to provide the physical definitions for the (difference between) microscopic events

— Me@2022-02-12 10:22:09 AM

a physical variable X is in a superposition state

~ X has no physical definition

~ in the experiment-setup design, no measurement device is allowed to exist to provide a definition of different possible values of X

— Me@2022-02-18 02:04:45 PM

2.2   A superposition state is a physical superposition of a physical state. Wrong.

“Quantum state” is a misnomer. It is not a (physical) state. It is a (mathematical) property. It is a system property (of a physical variable) of an experimental-setup design.

“State” and “property” have identical meanings except that:

State is physical. It exists in physical time. In other words, a system's state changes with time.

Property is mathematical. It is timeless. In other words, a system's property does not change. (If you insist on changing a system's property, that system will become, actually, another system.)

For example, “having two wheels” is a bicycle’s property; but the speed is a state, not a property of that bicycle.

superposition state

~ physically-undefined property

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In the phrase “superposition state”, the word “superposition” is also a misnomer.

A superposition state is not of physical waves, nor of physical states. Instead, it is a superposition of physical meanings of some variables in a physical system.

a physical variable X is in a superposition state

~ X is a physically-undefined property (of the physical system)

— Me@2022-02-18 02:04:45 PM

— Me@2022-02-20 06:44:32 AM

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2022.02.21 Monday (c) All rights reserved by ACHK

Sharp, 2

The beauty of doing nothing is that you can do it perfectly. Only when you do something is it almost impossible to do it without mistakes.

Therefore people who are contributing nothing to society, except their constant criticisms, can feel both intellectually and morally superior.

— Thomas Sowell

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2022.02.07 Monday ACHK

山盟海誓 3

如此仙子 1.6 | 鐵達尼極限 2.8 | 尋覓 2.1

這段改編自 2010 年 10 月 14 日的對話。

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真正永久愛情,就是「不需要愛情的愛情」,就是「不需要愛情感覺的愛情」。愛情的核心,並不是感覺,而是兩個心靈的獨有關係。

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地球人的愛情,是眾多感情中,最低下的。

但是,如果你將愛情脫離地球,變成不只是「外星愛情」,而直情是「天界愛情」的話,你的愛情,就可以是眾多感情中,最高尚的。

— Me@2021-03-19 03:34:58 PM

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2021.03.19 Friday (c) All rights reserved by ACHK

機遇創生論 1.4

這段改編自 2010 年 4 月 18 日的對話。

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你只能控制因,不能控制果。事情結果,除了受你的因以外,還受千百萬樣其他因素影響。所以,人生的大目標之中,很多也只有極細的成功機會率。

你唯一可以做的,就是透過嘗試掌握,最多的自然定律(道理)和具體資訊(世情/情報),去把成功的機會率,稍為提高一點。但記住,只可以提高一點,不會很多。

或者說,從來沒有必定成功的途徑,只有保證失敗的方法。而保證失敗的主要方法有:

  1. 不懂道理

  2. 懂道理但缺乏足夠情報

刪除必敗之道,就有成功之機。

這個大統一理論的成員,包括(但不止於):

精簡圖:

種子論
反白論
間書原理
完備知識論

自由決定論

它們可以大統一的成因,在於它們除了各個自成一國外,還可以合體理解和應用。

而道理和情報之中,較為常用的,有「反白論」和「間書原理」。

「反白論」的意思是,現時的地球人間,極多的情況下,名義與實情都是相反的。

反白論 ~ 名實時常相反論

例如,真正的有利健康的食品,例如蘋果,你不會刻意標籤它,為「健康食品」。市面上,刻意標籤為「健康食品」的,通常也是人工製品,營養價値不及水果高,有時甚至有害。

又例如,小學畢業和中學畢業時,紀念冊也會寫「友誼永固」,正正是友誼不會永固,通常。長大後,仍然有聯絡的兒時同學,極端接近零。從來沒有「石頭永固」的口號,因為,石頭本身就永固。

再例如,通常國家名越長,包含越多形容詞,那個國家就越危險。國名中的形容詞,往往正正就是,那個國家沒有的東西。

As a rule of thumb, the more qualifiers there are before the name of a country, the more corrupt the rulers. A country called The Socialist People’s Democratic Republic of X is probably the last place in the world you’d want to live.

–- Paul Graham

又再例如,為什麼結婚時會「山盟海誓」?

正正是因為愛情關係,可說是眾多感情關係中,最不可靠的一種;正正是因為誓詞中的承諾,很多人也不能達到。不信的話,你可以查看,離婚率的高低。

又再又例如,

我認為,對我們來說,一個人,一個黨,一個軍隊,或者一個學校,如若不被敵人反對,那就不好了,那一定是同敵人同流合污了。如若被敵人反對,那就好了,那就證明我們同敵人劃清界線了。如若敵人起勁地反對我們,把我們說得一塌糊塗,一無是處,那就更好了,那就證明我們不但同敵人劃清了界線,而且證明我們的工作是很有成績的了。

「反白論」的應用在於,掌握以後,大大減少了,你被世人欺騙得到的比例。

而更上一層樓話,你更可以反世人之言而行。例如,你選擇工作時,再不會為了一個職位的名氣大而選它,因為「名氣大」通常代表「收入少」或者「不快樂」。否則,為什麼一份工作需要用「名氣大」作賣點呢?

你不會再考慮,一份工作的名氣大小。反而,你會先考慮其短期收入和長遠收入,再考慮自己的興趣。

— Me@2020-03-19 09:34:39 PM

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2020.03.21 Saturday (c) All rights reserved by ACHK

The best software

somethingsimple 3 months ago

> Software is the currency that we pay to solve problems, which is our actual goal. We should endeavor to build as little software as possible to solve our problems.

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ScottBurson 3 months ago

My point today is that, if we wish to count lines of code, we should not regard them as “lines produced” but as “lines spent”: the current conventional wisdom is so foolish as to book that count on the wrong side of the ledger. — E. W. Dijkstra

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That’s why the best choice of software is often no software …

— Coding Horror

— by Jeff Atwood

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— Write dumb code

— Hacker News

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2018.05.01 Tuesday ACHK

反白論起點 2.2

這段改編自 2010 年 4 月 10 日的對話。

無錯。上司時常無故出現的公司,不會是效率高的公司。那正正就是老子講法的一個反例。

最佳的領袖,就是那些人民不覺其存在的領袖,因為最佳的領袖,會令到這個社會,無災無難。既然是無災無難,人民就自然不會察覺,其領袖的存在,亦不會察覺,其領袖需要存在。所以,人民反而會以為,這個領袖好像無所作業,可有可無。

正如壞醫生沒有能力,或者沒有意願,一次過醫好你,令你時常要去光顧他。換句話說,他會時常在你的世界出現。但是,好醫生有能力,亦有意願,一次過醫好你,令你短期內,也毋須再去光顧他。換而言之,他極少會在你的世界出現。那樣,你就自然不會察覺,他的重要性;甚至,你直情忘記了,他的存在。

一般人也以為,「無災無難」是自然現象。他們以為,萬事不作,就自動萬事大吉。實情是,這個世界,因為天災人禍,是一個地獄。「有災有難」,才是自然現象,才是預設狀態。

如果你不覺得這世界是個地獄,那是因為有很多人,包括你自己,為你提供了一些保護罩。例如,「上班」就是「滅災滅難」的工序之一。雖然,上班十分辛苦,但是,如果不上班,你就要捱餓,更加辛苦。

「無事發生」,就即是「無災無難」。「無災無難」,近乎是一個奇蹟。所以,單單是「無事發生」本身,就要領袖,以至是全體的大部分人民,十分刻意、十分艱苦的經營。

— Me@2014.08.03

2014.08.03 Sunday (c) All rights reserved by ACHK

反白論起點 2.1

這段改編自 2010 年 4 月 10 日的對話。

Chapter 17 (第十七章)

太上,下知有之;
其次,親而譽之;
其次畏之;
其次侮之。
信不足焉,有不信焉。
悠兮,其貴言,
功成事遂,
百姓皆謂我自然。

Great rulers are hardly known by their subjects,
    Then come those the people draw near and praise,
    Then those the people hold in fear,
    Then those the people revile.
    When one lacks trust, one finds no trust.

Reluctantly, without boasting;
Perform actions, accomplish deeds;
The people will say it happened naturally.

— Tao Te Ching (Wikisource translation)

老子的《道德經》之中提到,最佳的領袖,就是那些人民不覺其存在的領袖。人民反而會以為,這個領袖好像無所作業,可有可無。

(安:我現在的上司,就沒有這個智慧。我上司很刻意地,要下屬知道他的存在,繼而再顯示自己的存在價值。

我上司的管理方法,就是 Joel Spolsky 所講的「hit and run micromanagement」。「Hit and run」的原本意思是,駕車撞到人後,不顧而去;學名叫做「肇事逃逸」。

把我上司的管理方法,如果真是「方法」的話,比喻成「肇事逃逸」的原因是:

他有太多下屬,所以他其實不太知道,下屬正在執行的工序是什麼。即使知,也不會知其詳情。所以,他為下屬工作所出的主意,通常也有害無利,只會打亂下屬的工作流程,干擾公司的正常運作。

但是,他自己是不會知道那些惡果的,因為,他下了令後,就立刻走到另一組下屬的工作單位,繼續故亂下令。

從任何一個下屬的角度看,我上司就是「肇事逃逸」—— 他一時衝動,下了一些不經大腦的指令後,立刻不顧而去,導致引發一片混亂,傷亡慘重。)

無錯。上司時常無故出現的公司,不會是效率高的公司。

— Me@2014.07.28

2014.07.30 Wednesday (c) All rights reserved by ACHK

受威脅招聘法

大甲等人 5

這段改編自 2010 年 4 月 10 日的對話。

我看過一篇有關電腦界創業的文章。

大部人僱主,或者招聘部人員,也不敢聘請才華太出眾的應徵者,因為怕自己在公司的地位,受到威脅。而最高級的僱主,即是之前所講的「大甲等人」,就偏偏逆此趨勢而行。

「大甲等人」的招聘哲學是,凡是才智未高到,足以威脅到(招聘者)自己地位的應徵者,都不會考慮。換句話說,「大甲等人」只會聘請,有機會威脅到自己的應徵者。

後果是,公司越來越強大。

— Me@2014.07.16

2014.07.16 Wednesday (c) All rights reserved by ACHK

The paradox of happiness solved

It is often said that we fail to attain pleasures if we deliberately seek them. This has been described variously, by many:

    Viktor Frankl in Man’s Search for Meaning:

    Happiness cannot be pursued; it must ensue, and it only does so as the unintended side effect of one’s personal dedication to a cause greater than oneself …

— Wikipedia on Paradox of hedonism

The paradox of happiness: 

If you do good work, you will feel happy.

However, if you do good work only because of the desire of getting happiness, you will not get it.

[selfless]

happiness ~ progress ~ self transcendence

do good work ~ keep going to the next levels

[selfish]

seeking happiness directly ~ focus on oneself ~ trapped at the same level

no progress ~ unhappiness

— Me@2011.06.22

快樂

~ 快

快樂源於進步快。

— Me@2014.06.13

2014.06.13 Friday (c) All rights reserved by ACHK

學派

這段改編自 2010 年 4 月 10 日的對話。

一生的時間很短暫,不足夠寫,所有寫得出,而又對人很有用的文章。所以,我正在思考,如何解決這個問題。其實,應該可以解決,不算是什麼大問題。

(安:用李生的方法,先將最核心的東西寫出來。)

無錯。就是用這個方法。

(安:那樣,自然有後人,發展那些核心東西的技術細節。漸漸地,甚至演變成一個學派。)

然後,根據「假名定律」,你會發現,那個學派中的大部分意見,也不是我原本的學說。「失真」和「僭建」的情況,會十分嚴重。

— Me@2014.04.17

2014.04.19 Saturday (c) All rights reserved by ACHK

假名定律 1.2

反白論前傳:冠名篇 2.2

Jesus, Buddha, Einstein 3.2

這段改編自 2010 年 4 月 10 日的對話。

(安:經濟學家張五常先生提過,有一篇經濟論文指出,凱恩斯(John Maynard Keynes)的經濟理論,和「凱恩斯學派」的經濟理論,不盡相同,雖然整個學派是以「凱恩斯」來命名。)

那不算出奇,因為有很多類似的現象,例如,甘地講過:

我認同基督。我不認同基督徒。

很多「基督徒」的言行,也和「基督」太不相像。

又例如,「機會率」有兩大學派,「頻率學派」和「貝葉斯學派」。「貝葉斯學派」雖然以數學家貝葉斯(Thomas Bayes)來命名,但是,貝葉斯並不算是,「貝葉斯學派的成員」(Bayesian),因為,「貝葉斯學派」中有很多理論,例如,「貝葉斯學派」對「機會率」的詮釋,也不是貝葉斯本人的意見。

Bayes himself might not have embraced the broad interpretation now called Bayesian. It is difficult to assess Bayes’s philosophical views on probability, since his essay does not go into questions of interpretation.

— Wikipedia on Thomas Bayes

— Me@2014.04.11

I like your Christ. I do not like your Christians. Your Christians are so unlike your Christ. The materialism of affluent Christian countries appears to contradict the claims of Jesus Christ that says it’s not possible to worship both Mammon and God at the same time.

– Mohandas K. Gandhi

2014.04.11 Friday (c) All rights reserved by ACHK