Allow no exceptions 1.4

試前暑假 2.3

這段改編自 2010 年 6 月 29 日的對話。

當然辛苦。「Allow no exceptions」很困難。所以,你更加要對自己「絕」一點,才有機會做到。那怕當晚是電視劇大結局,還是世界盃總決賽 —— 荷蘭對巴西 —— 你都不要容許有例外。在新習慣固定之前,不要容許自己的工作時間表被打亂,一次也不可以。

當然,最理想的情況是,你在日間已經完成了,當日計劃以內的工作。那樣,你晚間就可以專心看電視。但是,萬一你在日間未能完成任務,你就唯有在晚間對自己「殘忍」一點,犧牲看電視的時間,以求保持當天的工作進度。

記住,你們現在距離明年的高考,只有大概二百七十日。每一天的進度也很重要。所以,你們更加要堅決執行「allow no exceptions」的政策。例如,她今天說因為在上個星期,尚未找到 past paper(歷屆試題),而導致沒有做。那樣,她在這科的進度,就慢了一個星期。那價值連城的二百七十日中,白白損失了七日。

這類錯誤,一定不可再犯。

— Me@2013.04.18

2013.04.18 Thursday (c) All rights reserved by ACHK

Electromagnetic mass

Now, it was known that some portion of a charged object’s resistance to acceleration is due to self-induction, because a moving charge constitutes an electric current, which produces a magnetic field, which resists changes in the current.

— 1.5  Corresponding States

— Reflections on Relativity

— mathpages

2013.04.18 Thursday ACHK

超人

惜此際 3.1

這段改編自 2010 年 4 月 3 日的對話。

我因為受過某些訓練,而成為了一個「不會自殺」的人。但是,我不會自殺,不代表我不會發瘋。所以,雖然我沒有需要防範自己自殺,但是我有需要防範自己發瘋。

當年我不幸選錯了某一份工作。我做了大概一個月後,就想辭職逃走。主要的原因是,那份工作的工作量極端超級,去到一個足以令我發瘋的程度。我已走到自己正常意志的邊緣。只差一步,就可以達到完全瘋狂的境界。

但是,因為某些緣故,我必須起碼做滿一年的時間,才可以離開。當時,我避免瘋狂的方法是,每日只擔心當日的事情;極力防止自己想像,超過一天的困難。

我不會想:「還有一年,怎樣捱得過呢?」

我只會想:「怎樣捱過這一天?」

每日的目標也只是,今天不要崩潰。

不少人也用這個「活在當下」方法,來完成地球人不可能完成的任務。作家 John T. Reed 在他的《Succeeding》中提到,年輕時,他在西點軍校接受軍訓,十分辛苦,因為長期缺乏睡眠和食物。辛苦的程度,令他連「一天」也接受不到。每一刻,他只會想像幾個小時的事情,例如:「只要捱過這兩個小時,就可以到達午飯時間。」

最極端的情況是,當他累到連最基本的步行也做不到時,他就會跟自己說:「我現在其實毋須『步行』。我需要做的,就只是把左腳放在右腳前,然後再將右腳放在左腳前,如此類推。」

— Me@2013.04.17

日日難過日日過

— Me@2009.03.27

2013.04.17 Wednesday (c) All rights reserved by ACHK

Meta-unification 2

String theory which is the state-of-the-art culmination of all the human knowledge about Nature provides us with very many “dimensions” of unification of previously unrelated phenomena, types of phenomena, objects, types of objects, and even unification of methods how to unify things, whether those things are objects, phenomena and principles that play a key role in the previous advances in physics or whether they are just notions in mathematics or whole subdisciplines of maths.

— Unification as a source of certainty

— Lubos Motl

2013.04.16 Tuesday ACHK

Allow no exceptions 1.3

試前暑假 2.2

這段改編自 2010 年 6 月 15 日的對話。

換而言之,你自暑期之初開始,就要養成「每科每星期做一份 past paper」的習慣。

每當你要培養一個新習慣時,你都可以用一個絕招,就是「allow no exceptions」,即是「不容有例外」,直到你的新習慣成功安裝為止。在那之前,無論如何,在每個星期當中,你都要堅持「每科做一份 past paper」,除非有超極端的事件,例如火警或入院。亦即是話,如果只有少許不舒服,你也要迫自己執行,事前決定要建構的新習慣。

(CYM:那好像很辛苦。)

當然辛苦。「Allow no exceptions」很困難。所以,你更加要對自己「絕」一點,才有機會做到。那怕當晚是電視劇大結局,還是世界盃總決賽 —— 荷蘭對巴西 —— 你都不要容許有例外。在新習慣固定之前,不要容許自己的工作時間表被打亂,一次也不可以。

— Me@2013.04.14

Allow no exceptions; make no excuses.

— Me@2013.04.09

2013.04.15 Monday (c) All rights reserved by ACHK

The Great Server Farm

It’s probably more appropriate to call it, as techie Ryan Singel quickly did, the Google Death Manager. The Death Manager lets you tell Google what to do with the data from all of your Google accounts, including most intimately, your Gmail messages, if your account goes inactive, presumably because you have gone to the great server farm in the sky. You can have the data simply deleted after a set period of inactivity or you can, will-style, hand it over to trusted contacts.

— Will You Use Google’s Death Manager To Let Loved Ones Read Your Email When You Die?

— Kashmir Hill, Forbes Staff

2013.04.14 Sunday ACHK

惜此際 2.6

這段改編自 2010 年 4 月 3 日的對話。

.

那樣,既然你不能改變她,你可以做的,就唯有不讓她改變你。即使你不能令她,不做不合理的事,至少你也不要讓她令你,做任何不合理的事。你要堅持客觀的原則。

例如,她要求你買一雙名貴的高跟鞋給她。但是,你要堅決拒絕,而改為買一雙名貴的正常鞋,以鼓勵她愛惜身體。那樣,你將要面對的結果,有兩個可能。其一是她知難而進;其二是她知難而退。

知難而進者,是指一方面,她會因為你在面對重大原則時,擇善固執,而覺得你有男子氣概,可以依靠;另一方面,她會因為你竭盡所能保護她,而深受感動。最後,她聽你的說話,改為穿著正常鞋。

知難而退者,是指一方面,她會因為你在面對輕微爭論時,也不肯妥協,而覺得你沒有男士風度,不可依靠;另一方面,她會因為你沒有全情投入,令她快樂,而大受打擊。結果,她會覺得和你一起,也沒有多大意思,而主動提出分手。

「知難而進」的情況,對你來說是好事;「知難而退」的處境,對你來說,亦不是壞事。

— Me@2013.04.13

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.

2013.04.13 Saturday (c) All rights reserved by ACHK

Advertising

You are the product, 2

Advertising isn’t just the disruption of aesthetics, the insults to your intelligence and the interruption of your train of thought. …

When people ask us why we charge for WhatsApp, we say “Have you considered the alternative?”

— WhatsApp Blog

2013.04.13 Saturday ACHK

試前暑假 2.1

Allow no exceptions 1.2

這段改編自 2010 年 6 月 15 日的對話。

另外,你一定要 keep 住(保持住)做 past paper(歷屆試題),因為「計時做」連同「核對評分、改正、問問題 和 化成筆記」,即使每一科每星期只做一份 past paper,時間就已經異常緊迫。你不 keep 住做 past paper 的話,之後並不會有額外的時間,給你追回「失去了」的訓練機會。

換而言之,你自暑期之初開始,就要養成「每科每星期做一份 past paper」的習慣。

— Me@2013.04.12

2013.04.12 Friday (c) All rights reserved by ACHK

Indie game, 3

“Publishers might be a necessary thing,” he said. “but it’s inevitable that they will shift the focus from games being made by people who want to make good games to people who want to make money.”

In Persson’s view, this benefits players more than anybody: “The more studios that can remove themselves from the publisher system, the more games that will be made out of love rather than for profit.”

— The Creator

— Simon Parkin

— The New Yorker

2013.04.11 Thursday ACHK

Work

Work is love made visible. And if you cannot work with love, but only with distaste, it is better that you should leave your work and sit at the gate of the temple and take alms of those who work with joy.

— Kahlil Gibran

Only the first sentence makes sense. Work should be love expressed.

— Me@2013-04-11 01:47:51 PM

2013.04.11 Thursday (c) All rights reserved by ACHK

惜此際 2.5

這段改編自 2010 年 4 月 3 日的對話。

.

(安:那如果我的「妖魔鬼怪」,正正是「想失戀而失不到」,我應該怎麼辦?那大概不會是,自己思想製造出來的「假問題」吧?)

「想失戀而失不到」包括了很多十分不同的處境,不能盡錄。你要視乎情況,隨機應變。我現在只講述,其中一種可能的情況:

你想分手,往往是對方持續做不合理的事,而你又改變不到她,無可奈何。例如,她的雙腳受了傷,原因是她長期穿著高跟鞋。於是,你跟她解釋,你不忍心見她受傷,請她放棄高跟鞋:

一個人無論是儀表還是吸引力,並不會因為穿著高跟鞋而提升。易地而處,你會留意別人有沒有穿高跟鞋嗎?

即使硬要假設高跟鞋會提升魅力,也不應自殘身體,為自己帶來永久的損傷。

經歷多次勸喻後,你發覺她仍堅持做不合理的事。雖然在口頭上,她承諾會保護雙腳,但是在行動上,她仍然無動於衷,依然故我。

那樣,既然你不能改變她,你可以做的,就唯有不讓她改變你。即使你不能令她,不做不合理的事,至少你也不要讓她令你,做任何不合理的事。你要堅持客觀的原則。

例如,她要求你買一雙名貴的高跟鞋給她。但是,你要堅決拒絕,而改為買一雙名貴的正常鞋,以鼓勵她愛惜身體。

那樣,你將要面對的結果,有兩個可能。其一是她知難而進;其二是她知難而退。

— Me@2013.04.11

.

.

2013.04.11 Thursday (c) All rights reserved by ACHK

Elementary particles, 4

However, there’s still some difference between the light elementary particle species – and the numerous heavy elementary particle species such as the black hole. The latter may still be described as some kind of “composites” of the former ones. However, string/M-theory has made the notion of compositeness more subtle. Compositeness has been de facto replaced by the UV/IR-mixing.

What is that? It’s a rule that in a theory that is as powerful as string theory and/or quantum gravity, the spectrum of elementary particles is far from arbitrary. In fact, the statistical details of the high-mass spectrum (and the properties of high-mass particles) is fully encoded in the properties of the low-mass excitations and vice versa!

— Unification as a source of certainty

— Lubos Motl

2013.04.10 Wednesday ACHK

Professionalism

Professionalism is not to invest all the resources to everything, but to do your best at everything with the resources you want to provide for that thing.

— Me < 2009

— Me@2013-04-09

2013.04.09 Tuesday (c) All rights reserved by ACHK

消失的筆記 2

Allow no exceptions 1.1

這段改編自 2010 年 6 月 15 日的對話。

你這本「魔法筆記」,千萬不要遺失,因為例如你剛才的這一頁資料,已經消磨了你半個小時去製作。幾個月後,當你累積歸納到,有(例如)二百頁時,而你又不見了它的話,你不會有足夠時間,去重新製作一本。那樣,學術知識和考試成績的「魔法」,就隨「筆記」而消失。

— Me@2013.04.09

2013.04.09 Tuesday (c) All rights reserved by ACHK

Causal diamonds

Quantum mechanics is a set of rules that allows an observer to predict, explain, and/or verify observations (and especially their mutual relationships) that he has access to.

An observer has access to a causal diamond – the intersection of the future light cone of the initial moment of his world line and the past light cone of the final moment of his world line (the latter, the final moment before which one must be able to collect the data, is more important in this discussion).

No observer can detect inconsistencies within the causal diamonds. However, inconsistencies between “stories” as told by different observers with different causal diamonds are allowed (and mildly encouraged) in general (as long as there is no observer who could incorporate all the data needed to see an inconsistency).

— Raphael Bousso is right about firewalls

— Lubos Motl

2013.04.08 Monday ACHK