Inception 13

潛行凶間 13

.

Reality –> Me –> Inception

真實 –> 凝結 –> 凝固

.

我的網誌凝結了我的思想,

潛行凶間凝固了我的理論。

— Me@2010.08.03

.

.

.

2011.01.17 Monday (c) ACHK

人格堤壩 4.2.2

這段改篇自 2010 年 4 月 1 日的對話。

還有,即使是真話,大部分情況下,都會有超過一種表達方式。我會選擇一個對各方最有利的。

例如,假設,有一位理科學生的數學考試只有 45 分,還差 5 分才合格。這個事實可以用以下兩種方式來表達:

1. 你數學真差。作為理科生,你竟然數學不合格,你難辭其咎。

2. 你毋須灰心,只差 5 分就可以合格,而那 5 分並不是很難奪取。你未必需要懂做較深的題目。你只要在較淺的題目,提高運算準確度,你隨時可以多得 10 分,而不是僅僅合格那麼簡單。

還有,所謂的「深」題目,並不是整題也深。「深」題目通常也是長題目。而長題目通常也會分開(例如)a, b, c, d 四部分。a, b 部分的作用是提示 —— 引導如何完成較深的 c, d 部分。由於 a, b 部分只是提示,即使你不能根據它們來征服 c, d 部分,a, b 部分本身,不會很困難。而且,只要完成 a, b 部分,就可以得到整題長題目的大概一半分數。

你主力做短題目,提高運算準確度,再盡力嘗試每題長題目的 a, b 部分,你就有望奪取中上的成績。

以上兩個表達方法,同樣準確描述了「數學考試只有 45 分,還差 5 分才合格」這個事實。但是,它們所引發的效果,卻有天淵之別。

第一個表達方法,會降低該個學生的求學動機,令他驚慌失措,不知如何是好。第二個表達方法,不單會提升該個學生的求學動機,而且提供了具體方法給他,把「求學動機」化成「求學行動」。第一個表達方法不是 actionable,因為學生不能把它作為行動指引。第二個表達方法是 actionable(可操作的),因為它提供了實質的行動步驟。

— Me@2011.01.17

2011.01.17 Monday (c) All rights reserved by ACHK

First superstring revolution

In physics, the first superstring revolution is a period of important discoveries in string theory roughly between 1984 and 1986. It was realised that string theory was capable of describing all elementary particles as well as the interactions between them. Hundreds of physicists started to work on string theory as the most promising idea to unify physical theories. The revolution was started by a discovery of anomaly cancellation in type I string theory via the Green-Schwarz mechanism in 1984. Several other ground-breaking discoveries, such as the heterotic string, were made in 1985. It was also realised in 1985 that to obtain N = 1 supersymmetry, the six small extra dimensions need to be compactified on a Calabi-Yau manifold.

— Wikipedia on First superstring revolution

2011.01.17 Monday ACHK

Russell | Einstein

Great spirits have always encountered violent opposition from mediocre minds. The mediocre mind is incapable of understanding the man who refuses to bow blindly to conventional prejudices and chooses instead to express his opinions courageously and honestly.

* Letter to Morris Raphael Cohen, professor emeritus of philosophy at the College of the City of New York, defending the appointment of Bertrand Russell to a teaching position (19 March 1940).

— Albert Einstein

2011.01.16 Sunday ACHK