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
在外國人的地方，你才是外國人。
In a foreigners’ place, you are a foreigner.
— Me@2010.12.28
— Me@2013.04.13
2013.04.13 Saturday (c) All rights reserved by ACHK
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
“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 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
這段改編自 2010 年 4 月 3 日的對話。
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（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
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2013.04.11 Thursday (c) All rights reserved by ACHK
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 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
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
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
Referrals tend to be a really fantastic way to bring people in and should be the first place you go. If you leverage each of your first ten hires’ networks, chances are you’ll meet some excellent candidates. When done right, internal and external referrals can scale your company pretty efficiently. Sit down and get your engineers to physically list out the best and smartest people they’ve ever worked with and then go after them with crazy intensity. As an added bonus, referral candidates might be easier to close because a friend’s recommendation goes a long way.
— How Stripe built one of Silicon Valley’s best engineering teams
— Jack Leidlein
2013.04.07 Sunday ACHK
這段改編自 2010 年 4 月 3 日的對話。
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無論是自然老死、意外、還是自殺，死後的其中一個劇情是，有時會見到一些「妖魔鬼怪」。但是，只要冷靜一點，你就會意識到，牠們是你自己的思想投射出來的。一有這一個領悟之際，那些「妖魔鬼怪」自會立刻消失，因為你的意識，再不肯「經營」牠們。
但是，對於一位自殺人士而言，他會有特別的難處，導致他較難意識到，那些「妖魔鬼怪」是自己製造出來的，可以話無就無，說消失就消失。他的額外困難在於，如果他有能力在短時間內，辨認到「那些怪物是假的」，他在生前就不會走到「自殺」這一步。
Your nightmares are like your dreams. You have to feed them to keep them alive.
例如，如果你現世的「妖魔鬼怪」是「自卑」，你只要意識到「只要每日提升自己一點點，自卑自會消失」，自卑自會消失。
又例如，如果你現世的「妖魔鬼怪」是「失戀」，你只要意識到「失戀並不可怕；真正可怕的情況是，你發現現任的女朋友，並不是你將來的妻子，而你想『失戀』又暫時『失』不到」，「失戀」的傷感自會消失。
（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：
…
— Me@2013.04.07
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2013.04.07 Sunday (c) All rights reserved by ACHK
However, the individual microstates of the black holes may also be viewed as “elementary particles”, something that can be localized just like the electron. So string theory i.e. quantum gravity tells you that there are many species of elementary particles. The light ones are well-described by the quantum field theories – an approximate, effective description. However, you may continuously try to increase the mass of the particles, look for ever heavier species, and when you get to very high particle species, they may be viewed as higher excited, “large” strings or branes and, when they’re even heavier, as black hole microstates!
Some of the previous steps in the unification – such as S-duality – have found rigorous maps between seemingly elementary objects (such as electrically charged “electrons”) – and the seemingly composite objects (such as “solitons”, e.g. magnetic monopoles). So it’s not quite a new insight that elementary and composite objects can’t be strictly separated – an aesthetically appealing intuition that was promoted by people such as Werner Heisenberg when he was older and the S-matrix school but that didn’t lead to any solid insights prior to the birth of string theory.
— Unification as a source of certainty
— Lubos Motl
2013.04.06 Saturday ACHK
The stronger you are, the less you care if you appear weak.
— Me@2010.12.27
2013.04.05 Friday (c) All rights reserved by ACHK
這段改編自 2010 年 4 月 3 日的對話。
…
同理，「腦袋」只是一部「意識電視機」。即使這部「電視機」停止運作，那些「意識電視節目」，繼續會以某些形式，「儲存於」周圍的宇宙。只要將來有另一部「電視機」，配備「心靈天線」，接收到那些訊號，那個意識就會「再生」。
而在「再生」之前，他仍然會有知覺，帶著生前的痛苦，除非他可以親自解決，那原本的現世問題。但是，那時他已暫時失去現世的身體。所以，他暫時不能解決那痛苦之源。
自殺可以令現世的生命暫時消失，但是意識不會消失。正如睡眠可以令「清醒的頭腦」暫時消失，但在睡眠時，「不清醒的頭腦」仍然不斷運作，製造「主觀世界」，簡稱「夢境」。
無論是自然老死、意外、還是自殺，死後的其中一個劇情是，有時會見到一些「妖魔鬼怪」。但是，只要冷靜一點，你就會意識到，牠們是你自己的思想投射出來的。一有這一個領悟之際，那些「妖魔鬼怪」自會立刻消失，因為你的意識，再不肯「經營」牠們。
但是，對於一位自殺人士而言，他會有特別的難處，導致他較難意識到，那些「妖魔鬼怪」是自己製造出來的，可以話無就無，說消失就消失。他的特別難處在於，如果他有能力在短時間內，辨認到「那些怪物是假的」，他生前就不會走到「自殺」這一步。
…
— Me@2013.04.04
Your nightmares are like your dreams. You have to feed them to keep them alive.
— based on A Beautiful Mind
— Me@2013.04.04
2013.04.05 Friday (c) All rights reserved by ACHK
entropy ~ hidden information
— Lecture 6 | Topics in String Theory
— Leonard Susskind
2013.04.03 Wednesday ACHK
[Frank has just been denied the Secretary of State appointment he was promised.]
Linda Vasquez: I know he made you a promise, but circumstances have changed.
Frank Underwood: The nature of promises, Linda, is that they remain immune to changing circumstances.
— House of Cards
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2013.04.03 Wednesday ACHK
這段改編自 2010 年 4 月 3 日的對話。
…
終後影響方面，一個人自殺，對於自己而言，意識並不會消失，仍然會受苦。
一個人自殺，往往是因為現世的問題尚未解決，導致痛苦萬分，所以企圖以「刪除自己意識」的方法，來避開那萬分痛苦。
但是，那只是誤會。一個人的意識，並不（只）是寄居於現世的腦袋之中。正如，「電視節目」並不是儲存在「電視機」之中。那些「電視節目」，其實是以「電磁波訊號」的形式，「儲存於」周圍的空間。「電視機」只是負責接收那些訊號，從而把它們化成聲音和畫面，呈現於觀眾面前。
同理，「腦袋」只是一部「意識電視機」。即使這部「電視機」停止運作，那些「意識電視節目」，繼續會以某些形式，「儲存於」周圍的宇宙。只要將來有另一部「電視機」，接收到那些訊號，那個意識就會「再生」。
而在「再生」之前，他仍然會有知覺，帶著生前的痛苦，除非他可以親自解決，那原本的現世問題。但是，那時他已暫時失去現世的身體。所以，他暫時不能解決那痛苦之源。
…
— Me@2013.04.02
2013.04.03 Wednesday (c) All rights reserved by ACHK
Symmetry dictates interactions.
—
Yang once summarized the fundamental laws in physics deduced in this century by a simple slogan “symmetry dictates interactions”.
— Symmetry & Modern Physics: Yang Retirement Symposium
— Alfred S. Goldhaber
2013.04.02 Tuesday ACHK
Give me a million dollars and I’ll figure out what to do. But it’s harder than it looks. Constraints give your life shape. Remove them and most people have no idea what to do: look at what happens to those who win lotteries or inherit money.
— How to do what you love
— Paul Graham
Constraints decrease the number of choices, thus decrease uncertainty. Therefore, constraints give shape to your life.
— Me@2010.12.27
2013.04.02 Tuesday (c) All rights reserved by ACHK
Physics Town 
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