Total Perspective Vortex

The Total Perspective Vortex is allegedly the most horrible torture device to which a sentient being can be subjected.

When you are put into the Vortex you are given just one momentary glimpse of the entire unimaginable infinity of creation, and somewhere in it a tiny little mark, a microscopic dot on a microscopic dot, which says, “You are here.”

Located on Frogstar World B, the machine was originally invented by one Trin Tragula in order to annoy his wife. Because she was forever nagging him for having no sense of proportion, he decided to invent something that would show her what having a sense of proportion really meant. Unfortunately the shock of being placed in the Vortex destroyed her brain, but Trin Tragula’s grief was tempered by the knowledge that he had been right and she had been wrong. In Adams’s words, the Total Perspective Vortex illustrated that “In an infinite universe, the one thing sentient life cannot afford to have is a sense of proportion.”

— Wikipedia on Technology in The Hitchhiker’s Guide to the Galaxy

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2010.10.17 Sunday ACHK

Copyleft 5.3

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

他創立了 Free Software Foundation(自由軟件基金會)和啟動了 GNU Project(GNU 項目)。Free Software Foundation 的存在目的,是製作各式各樣的電腦程式,然後將其發表成「自由軟件」。而眾多種類的程式之中,最關鍵的是 Operating System(作業系統程式),所以,GNU Project 的目標是,編寫一個 Free Operating System(自由的作業系統程式)。「Free」的意思是指「自由」。「自由」的意思是,用家買了該個程式後,可以自由複製,甚至複製給朋友使用。

「Free」這個英文字有兩個可能的意思。一個是指「自由」;另一個是指「免費」。在 GNU Project 開始時,Richard Stallman 還沒有分清楚這兩個意思。後來,他再三強調,「Free Software」的意思是指「自由軟件」,不是指「免費軟件」。「自由軟件」是否「免費」,並不是他直接關心的事情。他指出,程式員都可以靠售賣「自由軟件」為生。重點是,不應限制買家如何利用、修改 和 複製 買回來的程式。

問題是,如何將自己編寫的程式作品,發表成「自由軟件」呢?

即使直接「釋放」了自己軟件作品的版權,容許別人任意複製,都不能保證該作品永久是「自由軟件」。你自己沒有保留版權的話,心地不好的人就可以把你的程式修改一點,然後宣稱「版權所有」,從而限制其他人複製。

— Me@2010.10.16

2010.10.16 Saturday (c) All rights reserved by ACHK

物理語言

這段改篇自 2010 年 4 月 1 日的對話。

有沒有發覺,表面上是考你「物理知識」,實際上是考你對「物理語言」的理解?

(CN:我知。我感受到。)

物理考試成績的好壞,其實只有兩成直接取決於「物理知識」。其餘八成,是考你對「試題問法」的掌握,「物理詞彙」的理解。

這正正是為什麼「大量練習 past papers(歷屆試題)」極為重要。

— Me@2010.10.15

2010.10.15 Friday (c) All rights reserved by ACHK

Copyleft 5.2

另外,「Copyleft」都是運用了「Virtual Machine」概念。還有,更「驚嚇」的是,「Copyleft」其實一個完美的「Virtual Machine」。你記不記得「Copyleft」的原意是什麼?

(安:「Copyleft」的原意是,令到電腦程式免費?)

不是。完全不是這個意思。

Richard Stallman 覺得電腦程式應該給人互相複製。「電腦程式」的本質就是「極容易複製」,因為「複製程式」的成本近乎是零。Richard Stallman 覺得,既然是這樣,我們就不單不應該阻止電腦程式用家複製程式,而且還應該鼓勵,以推動人類電腦知識的傳播和發展。

我有沒有講過 Richard Stallman 的故事?

(安:沒有詳細講。)

有關 Richard Stallman 的詳細生平事跡,你可以參閱《維基百科全書》。我現在只講一些重點。Richard Stallman 不喜歡現在的 software(電腦軟件/程式)的 copyright(版權)制度,因為 copyright 禁止用家之間互相複製程式。但是,要以一人之力,一下子改變現時的 software copyright 制度,又沒有什麼可能。所以,Richard Stallman 採取了以下的策略。

他創立了 Free Software Foundation(自由軟件基金會)和啟動了 GNU Project(GNU 項目)。GNU Project 的目標是,編寫一個 Free Operating System(自由的「作業系統程式」)。

— Me@2010.10.14

2010.10.14 Thursday (c) All rights reserved by ACHK

Don’t Panic

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In the series, DON’T PANIC (always upper-case) is a phrase written on the cover of The Hitchhiker’s Guide to the Galaxy. The novel explains that this was partly because the device “looked insanely complicated” to operate, and partly to keep intergalactic travelers from panicking. It is said that despite its many glaring (and occasionally fatal) inaccuracies, the Hitchhiker’s Guide to the Galaxy itself has outsold the Encyclopedia Galactica because it is slightly cheaper, and because it has the words “Don’t Panic” in large, friendly letters on the cover.

Arthur C. Clarke said Douglas Adams’ use of “don’t panic” was perhaps the best advice that could be given to humanity.

— Wikipedia on Phrases from The Hitchhiker’s Guide to the Galaxy

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2010.10.13 Wednesday ACHK

年年齡 3.2

這段改篇自 2010 年 4 月 1 日的對話。

20 歲到 40 歲那段時間,就會好像 10 歲到 20 歲的那一段,過得那麼快;40 歲到 80 歲那段時間,又會好像 20 歲到 40 歲的那一段,過得那麼快。

(CN:我明白。那真的是很有趣。)

而生物學的原因是,人年紀越大,內在生理時鐘就越慢,導致新陳代謝和心跳等,沒有之前那麼快。相對比較之下,外在世界的運轉,就好像越來越快。

而重點是,「年紀變大」這個劇情,你是不能阻止的。要避免自己因為「年紀變大」而不開心的話,最好的方法,不是「直接解決」,而是「把問題 transcend 掉」,令到原本的問題不再重要。

(CN:如何把「年紀問題」 transcend 掉?)

— Me@2010.10.13

2010.10.13 Wednesday (c) All rights reserved by ACHK

The Hitchhiker’s Guide to the Galaxy

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In many of the more relaxed civilizations on the Outer Eastern Rim of the Galaxy, the Hitchhiker’s Guide has already supplanted the great Encyclopaedia Galactica as the standard repository of all knowledge and wisdom, for though it has many omissions and contains much that is apocryphal, or at least wildly inaccurate, it scores over the older, more pedestrian work in two important respects.

First, it is slightly cheaper; and second, it has the words “DON’T PANIC” inscribed in large friendly letters on its cover.

— Douglas Adams’ The Hitchhiker’s Guide to the Galaxy

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2010.10.12 Tuesday ACHK

虛擬機器 5

Copyleft 5

(安:不如延續上次有關電腦的一些話題。)

上次我們講到,「中國特色社會主義」其實是運用了「Virtual Machine」(虛擬機器)這個概念:在「共產主義」的「作業系統」上,運用「資本主義」的程式。

當然,電腦的「Virtual Machine」(虛擬機器)未必可以百分百替代「真實機器」。例如,有些 Virtual Machine 程式寫得不好,未能偵測和連接我的掌上電腦,導致不能和我的掌上電腦交換資料。

雖然 Virtual Machine 程式有時未臻完美,但是它本身已經為電腦民族帶來無數的方便。還有,「Virtual Machine」這個概念本身,已經變成了我一個主要的神奇思考工具。

(安:我都覺得這個概念很有趣。)

另外,「Copyleft」都是運用了「Virtual Machine」概念。還有,更「驚嚇」的是,「Copyleft」其實一個完美的「Virtual Machine」。

— Me@2010.10.11

2010.10.12 Tuesday (c) All rights reserved by ACHK

Futurama 3

Godfellas

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Bender: You know, I was God once.

God: Yes, I saw. You were doing good, until everyone died.

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God: Bender, being God isn’t easy. If you do too much, people get dependent on you, and if you do nothing, they lose hope. You have to use a light touch. Like a safecracker, or a pickpocket.

Bender: Or a guy who burns down a bar for the insurance money!

God: Yes, if you make it look like an electrical thing. When you do things right, people won’t be sure you’ve done anything at all.

— Futurama

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2010.10.11 Monday ACHK

年年齡 3.1

這段改篇自 2010 年 4 月 1 日的對話。

不緊要。我原本都是「思考過量」的人。我都是在接近 30 歲時,才開始做到「不要在毋須思考時思考」。

(CN:我不想接近 30 歲。)

接近 30 歲時,會開心很多。還有,雖然你現在還年青,但是「很快」就會到 30 歲。

(CN:我知。我感受到。我 20 歲的生日還歷歷在目,21 歲的生日就迎面衝過來。)

年紀越大,(你會感覺到)時間過得越快。

(CN:是呀!我都有這個感覺。)

有兩個原因。一個是數學的原因;一個是生物學的原因。

(CN:為什麼呢?)

數學的原因是,舉例來說,由 10 歲到 11 歲,人生多了十分之一;但是由 80 歲到 81 歲,人生只多了八十分之一。多了十分之一,你一定會察覺;多了八十分之一,你通常也沒有什麼感受。

同樣是經過一年,對 10 歲的人和 80 歲的人來說,感覺相差很遠。10 歲的人會由小學四年級升至小學五年級。80 歲的人則不會太在意,因為生活還是那樣,沒有什麼大改變。

(CN:那很有趣。)

人生原本的歲數越來越多時,再加一年,感覺上,就好像越來越沒有什麼改變。同樣是客觀上的一年,年紀小的人覺得是長時間,年紀大的人卻覺得是短時間。所以,年紀越大,你會覺得時間過得越快。

20 歲到 40 歲那段時間,就會好像 10 歲到 20 歲的那一段,過得那麼快;40 歲到 80 歲那段時間,又會好像 20 歲到 40 歲的那一段,過得那麼快。

(CN:我明白。那真的是很有趣。)

而生物學的原因是,…

— Me@2010.10.10

* We’re in a freefall into future. We don’t know where we’re going. Things are changing so fast, and always when you’re going through a long tunnel, anxiety comes along. And all you have to do to transform your hell into a paradise is to turn your fall into a voluntary act. It’s a very interesting shift of perspective and that’s all it is … joyful participation in the sorrows and everything changes.

— Joseph Campbell

2010.10.11 Monday (c) All rights reserved by ACHK

I don’t know.

防止被騙系統 5

讀心術 9

When nerds are unbearable it’s usually because they’re trying too hard to seem smart. But the smarter they are, the less pressure they feel to act smart. So as a rule you can recognize genuinely smart people by their ability to say things like “I don’t know,” “Maybe you’re right,” and “I don’t understand x well enough.”

— Paul Graham

2010.10.10 Sunday (c) All rights reserved by ACHK

Any key

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Computer programmers historically used “Press any key to continue” (or a similar text) as a prompt to the user when it was necessary to pause processing. The system would resume after the user pressed any keyboard button.

Cultural significance

There are reports that some users have searched for such a key labelled “any”, and called technical support when they have been unable to find it. The computer company Compaq even edited their FAQ to explain that the “any” key does not exist, and at one point considered replacing the command “Press any key” with “Press return key”.

The concept of the “any key” has become a popular piece of computer-related humor, in part because of an episode of The Simpsons in which main character Homer Simpson asks “Where’s the any key?” when confronted with the “press any key” command.

— Wikipedia on Any key

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2010.10.10 Sunday ACHK

 

年年齡 2.2

    * Maybe what I’m saying is the world might be evolving the way a person evolves. Right? Like, me for example. Am I getting worse? Am I improving? I don’t know. When I was younger, I was healthier, but I was whacked with insecurity. Now I’m older and my problems are deeper, but I’m more equipped to handle them.

— Jesse

— Before Sunset

2010.10.09 Saturday ACHK