# 反白論前傳：信心篇

「百分百信心」自相矛盾。

「百分百」肯定一件事的話，就毋須「信心」。

— Me@2010.07.29

# Inception 3

A dream (within a dream)^N

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《潛行凶間》的主題是「清醒夢」和「多層夢」。

「多層夢」之中，有部分是「清醒夢」。

— Me@2010.07.30

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2010.07.31 Saturday $copyright ACHK$

# 不成比例

 Mark Time 100 100 80 50

 Grade Time A 100 B 50 C 25

— Me@2010.07.31

— Me@2010.07.30

# Inception 2

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You cannot teach a man anything, you can only help him to find it for himself.

— Galileo Galilei

— Me@2010.07.30

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2010.07.30 Friday $ACHK$

# 電腦輪迴觀

Self-de-centralization

— Me@2010.07.27

# Photon dynamics in the double-slit experiment 2

Both photons and material particles such as electrons create analogous interference patterns when passing through a double-slit experiment. For photons, this corresponds to the interference of a Maxwell light wave whereas, for material particles, this corresponds to the interference of the Schrodinger wave equation. Although this similarity might suggest that Maxwell’s equations are simply Schrodinger’s equation for photons, most physicists do not agree. For one thing, they are mathematically different; most obviously, Schrodinger’s one equation solves for a complex field, whereas Maxwell’s four equations solve for real fields. More generally, the normal concept of a Schrodinger probability wave function cannot be applied to photons. Being massless, they cannot be localized without being destroyed; technically, photons cannot have a position eigenstate , and, thus, the normal Heisenberg uncertainty principle does not pertain to photons. A few substitute wave functions have been suggested for the photon, but they have not come into general use. Instead, physicists generally accept the second-quantized theory of photons described below, quantum electrodynamics, in which photons are quantized excitations of electromagnetic modes.

— Wikipedia on Photon

2010.07.29 Thursday ACHK

# 入魔

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— Me@2009.09.14

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— Me@2010.07.28

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2010.07.29 Thursday $copyright ACHK$

# 可以做得更好？

WCW: 我可能有少許怪自己。

Me: 為什麼呢？

WCW: 因為今次高考（高級程度會考），我其實可以做得更好。

Me: 毋須怪自己。

WCW: 為什麼呢？

Me: 如果是未考的話，你可以思考「如何做得更好？」。但是，你已經考了，又知道了成績。既然已成定局，就無謂那樣想，因為，在任何情況下，你都可以認為「本來可以做得更好」。如果你抱有這種思想壞習慣的話，你拿什麼成績也不會高興（，除非你是科科滿分）。

— Me@2010.07.29

# Quantum gravity 5

Is Loop quantum gravity the M-theory that the Superstring theorists are looking for?

— Me@2010.07.27

# Jesus, Buddha, Einstein 2

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— Me@2010.07.27

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— 尼采

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— Me@2010.07.27

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2010.07.28 Wednesday $copyright ACHK$

# 人形電視機

1. 接收到的頻道數目大小；

2. 接收到的頻道中，有沒有一些是高質素的節目；和

3. 可不可以以清晰流暢的畫面，播放那些高質素的節目。

— Me@2010.07.26

# Progress report

If you have progress, you can show your progress.

If you have no progress, you have to write a progress report.

— Me@2010.07.26

# 三十年孤寂

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— Me@2010.07.26

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2010.07.27 Tuesday $copyright ACHK$

# 梅花間竹 3

Past papers –> 溫習課文 –> Past papers –> 溫習課文 –> …

— Me@2010.07.27

# Kaluza–Klein theory

In physics, Kaluza–Klein theory (KK theory) is a model that seeks to unify the two fundamental forces of gravitation and electromagnetism. The theory was first published in 1921. It was proposed by the mathematician Theodor Kaluza who extended general relativity to a five-dimensional spacetime. The resulting equations can be separated into further sets of equations, one of which is equivalent to Einstein field equations, another set equivalent to Maxwell’s equations for the electromagnetic field and the final part an extra scalar field now termed the “radion”.

— Wikipedia on Kaluza–Klein theory

2010.07.26 Monday ACHK

# Customers

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Customers Don’t Know What They Want. Stop Expecting Customers to Know What They Want. It’s just never going to happen. Get over it.

— The Iceberg Secret, Revealed

— Joel Spolsky

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2010.07.26 Monday $ACHK$

# 難能可貴

Rare 2

— Me@2010.07.21

How would it be possible, if salvation were ready to our hand, and could without great labour be found, that should be by almost all men neglected? But all excellent things are as difficult as they are rare.

— Spinoza

# Quantum gravity 4

Ultimate goal is to merge:

quantum theory (representation theory)

&

general relativity (differential geometry)

by combining notions of

quantum state & geometry of space (spin network)

quantum history & geometry of spacetime (spin foam)

— John Baez

2010.07.25 Sunday ACHK

# 自我虛級化 2

Self-de-centralization 2

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Centralized-self = Evil

— Me@2010.07.25

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— 臥虎藏龍

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2010.07.25 Sunday $copyright ACHK$