PhD, 3.1

故事連線 1.1.5.1 | 碩士 4.1 | On Keeping Your Soul, 2.2.1 | Release early. Release often, 3

這段改編自 2010 年 4 月 18 日的對話。

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一般寫博士論文的方法過程,有如 closed source software(閉源軟件)的開發一樣,是不合理的。

那個方法是,花數年時間,編寫一個軟件程式,然後才正式出版。這個方法的危險之處是,如果軟件上市以後,才發現不受市場認同的話,那數年的投資,基本上是血本無歸的。

合理一點的開發模式是,open source software(開源軟件)開發時,一個經常採用的方法,叫做「release early, release often」(極速(而)頻繁(地)出版)。意思是,與其花數年時間,去編寫一個軟件程式的「完美」版,然後才正式出版,倒不如,先把那個軟件的「最粗疏但已經可用」版本,極速完成,然後立刻出版。

那樣,那公司就可以馬上得到,市場的初步反應;從而決定:是否繼續開發那個軟件:如果繼續的話,又應該改進哪些部分。

如果決定繼續開發,就立刻重覆這個「極速出版」流程。亦即是話,再把那個軟件改進部分的,「最粗疏但已經可用」版本,極速完成,然後立刻出版。

— Me@2019-01-13 06:22:43 PM

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2019.01.13 Sunday (c) All rights reserved by ACHK

Insomnia, 5

mingyeow 47 minutes ago [-]

I had signs of insomnia in the last couple of years. Tried all the usual techniques, and I realized those just do not work for one simple reason – that the moment I do not fall asleep, I become frustrated. And that frustration in turn makes sleeping much harder.

So, I tried doing the exact opposite, and my sleep has been tremendously better since.

Essentially, I force myself to keep my eyes open. When I catch myself falling asleep, I actually force myself to keep them often again. Before I know it, it is morning.

It sounds counter-intuitive, but all my insomnia problems are over, including on a plane. Would love to know if it works for others, or if it is just a silly thing that works for only me.

— Insomnia: To Pursue Sleep So Hard You Become Invigorated by the Chase

— Hacker News

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2018.11.20 Tuesday ACHK

Insomnia

如夢初醒 4.2 | 讀書與睡眠 4.2

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DrPhish 5 months ago [-]

This is exactly the Zen moment that fixed my lifelong insomnia: lying in bed relaxed with my eyes closed, even if I’m not asleep, leaves me feeling worlds better in the morning than fretting about not being able to sleep. It’s something that happened when I forgot about it completely. Once I realized I could literally just lie in bed for 8 hours and be OK, I was able to let go.

It’s like a trap that closes tighter about you the more you struggle, and releases if you allow yourself to relax[.]

Once I really got that, sleep became regular and uninterrupted[.]

laumars 5 months ago [-]

I discovered this recently too. Even in the instances when I still don’t get to sleep (eg my 1 year old coming into bed and wriggling in her sleep waking me) I’ve still felt more refreshed when I’ve relaxed rather than laid in bed wound up. I’m not into new age / whatever stuff but I like to think of it as night time meditation as while it’s still not as good as sleep it’s still a great deal better than full blown insomnia! And best of all, sometimes it clears your mind enough to actually sleep.

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— Thinking of yourself as an insomniac may be a part of the problem

— Hacker News

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2018.10.11 Thursday ACHK

Intuition

Unsourced variant:

The intellect has little to do on the road to discovery. There comes a leap in consciousness, call it intuition or what you will, and the solution comes to you and you do not know how or why. All great discoveries are made in this way.

The earliest published version of this variant appears to be The Human Side of Scientists by Ralph Edward Oesper (1975), p. 58, but no source is provided, and the similarity to the “Life Magazine” quote above suggests it’s likely a misquote.

In response to statement “You once told me that progress is made only by intuition, and not by the accumulation of knowledge.”

It’s not as simple as that. Knowledge is necessary, too. An intuitive child couldn’t accomplish anything without some knowledge.

There will come a point in everyone’s life, however, where only intuition can make the leap ahead, without ever knowing precisely how. One can never know why, but one must accept intuition as a fact.

— Albert Einstein

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2018.04.24 Tuesday ACHK

Ken Chan 去咗邊呢?

無足夠資料 11.1

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來到這版,可能是你看了 Ken Chan 的物理參加書時,發現了他的網址:

d_2018_04_10__11_57_18_AM_

不到意思,他已經沒有用這個網址了。我不是 Ken Chan,而是他九十年代的學生。(無錯,我都已經係老餅。)

我租了這個網址,一來,用作紀念;二來,亦可以避免他人冒充 Ken Chan;繼而,我就可親自冒充他。

(邪惡地笑)

d_2018_04_11

當然,那於理不合,於法不容。所以,我重申一次:

我不是 Ken Chan,而是他九十年代的學生。

(但是,如果需要聯絡本人,可用右邊的電郵地址。)

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那樣,Ken Chan 又去了哪裡呢?

我也不知道。他既然停用了自己的課程網址,那最大的可能性就是,他從教學界退了休。

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我不喜歡「補習老師」這個詞語,因為我不喜歡「補習」,又不喜歡「老師」:

「補習」一詞,給人「多餘」、「依賴」和「騙錢」的感覺。

「老師」一詞,給人「年老」、「沉悶」和「沒有發展」的感覺。

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所以,我不會稱 Ken Chan 為我的「補習老師」;如果一定要給一個尊稱,我會叫他為我的「物理先知」。

同理,雖然我也有從事類似的行業,我亦不會叫我自己做「補習老師」,而是「學術顧問」。

而 Ken Chan 的境界,遠遠高於其他老師的原因,正正就是,他的人生目標(或稱正職),並不是做「補習老師」,而是一位學者,從事學術研究。

(至於他的在哪間大學任教和研究,我則不知道,因為,他沒有公開。)

在學生時代,我已經立志(!)不做(!)全職的中學教員。

一個稍為有創意、略略有志氣的年青人,又怎能忍受自己人生中的幾十年,重複教著同一堆東西呢?

除非,教學只是他的職責之一。他仍有大半時間,從事學術研究。學術的精神世界,仍然是不停地發展的。

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如果他真的退了休,香港的物理學生,又如何是好呢?

問題有那麼嚴重嗎?

有。如果香港沒有實力相近於 Ken Chan 的,物理兼工程專家,去指導眾多年輕人,那就真的十分大件事了。

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當年,如果沒有他的教導,我大概不能升學。

— Me@2018-04-11 12:21:42 PM。

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2018.04.11 Wednesday (c) All rights reserved by ACHK