# 機會率應試 1.1

（CYW：這類題目好像真的很難。如果考試遇到這些題目，應該怎麼辦？）

— Me@2012.10.25

Meta-time 4 | Cumulative concept of time, 13

The grandfather paradox has this structure:

Your-2012-self = [ …, your-2002-self, … ]

B = [ …, A, … ]

If your-2012-self can go back to, such as, year 2001,

Your-2002-self = [ …, your-2012-self, … ]

A = [ …, B, … ]

Unless A = B, it is logical impossible to have both “A is part of B” and “B is part of A“.

— Me@2012.04.02

# 機會率哲學 1.1

「機會率」和「統計學」是一體之兩面。

「機會率」是用「一般定律」來描述「個別事件」。例如，如果一粒骰子是公平的，每一面出現的機會率就會均等，都是六分之一（1/6）。那就是「一般定律」。而某一次擲骰子，就是「個別事件」。在那一次擲骰子前，你預測「擲到三」的機會率是六分之一，就為之「用『一般定律』來描述『個別事件』」。

「統計學」是從眾多「個別事件」歸納出「一般定律」。例如，如果一粒骰子擲了 6000 次，大概有 1000 次是「擲到三」的話，我們就知道「擲到三」的機會率是大概六分之一（1/6）。那就是該粒骰子的「一般定律」。

「機會率」和「統計學」是一體之兩面。我們在今天的討論中，可以視它們為同義詞，隨時互換。

— Me@2012.10.24

# Existence, 4

Why does the universe exist? 2

The sentence “the universe does not exist” is meaningless. However, its limited version “there are nothing” or “the universe has nothing” may be meaningful.

If the universe is finite in space, in principle, you can search all over the space to confirm that there are really nothing. So it seems that the sentence “the universe has nothing” does not violate the confirmation principle. However, there are three problems.

First, spacetime is also a “thing”, provided that the definition of the word “thing” is not limited to “object” or “matter”. Second, “spacetime” has no meaning if there are no matter and no energy. Moreover, you, as an observer, is also a “thing”.

After all, “the universe has nothing” is meaningless, in the sense that it violates the confirmation principle.

— Me@2012.10.15

# 淘汰賽 2.2

(_)  (_)                決賽

(_)  (_)        (_)  (_)       準決賽

(_)(_)  (_)(_)  (_)(_)  (_)(_)   初賽

P 方法：

S 方法：

（＿）
（   ）

（＿＿）
（8P4）

(A)(B)  (_)(_)

(B)(A)  (_)(_)

(_)(_)  (A)(B)

(_)(_)  (B)(A)

（4）
＿＿＿
（8P4）

（4）（6P2）
＿＿＿＿
（8P4）

（4）（30）
＿＿＿＿
（1680）

= 1/14

— Me@2012.10.22

— Me@2012.10.17

# Digital physics, 7

The events in spacetime are not symmetric. The causal structure could never quite emerge from such a starting point. More obviously, the symmetry between the events – points of the graph – creates the impression that the spacetime in quantum gravity may be discrete but it remains fundamental.

The last decade in theoretical physics has simply settled this question – whether someone likes it or not – and the answer is “No”. The spacetime geometry cannot be fundamental at the Planck scale. It is subject to transitions, dualities, and holography, among other phenomena that prove that it must be flexible and it cannot arise from a graph because a graph is too local. In neither of the existing descriptions we can find a discrete spacetime and it seems rather unlikely that there exists a description where it is discrete.

— Lubos Motl

2012.10.22 Monday ACHK

# 不思考之道 4

Thinking is like medicine, sometimes crucial.

But you should take as least as possible.

Take only when necessary.

— Me@2012.10.18

Taking actions is the best way to eliminate unnecessary thinkings.

— Me@2012.10.21

Posted in OCD

# 淘汰賽 2.1

(_)  (_)                決賽

(_)  (_)        (_)  (_)       準決賽

(_)(_)  (_)(_)  (_)(_)  (_)(_)   初賽

P 方法：

1. A B 的初賽比賽位置，可以令他們晉級後相遇；

2. A B 在初賽各自勝利。

（＿）（＿）

（1）（＿）

（1）（2/7）

（1）（2/7）（1/2）（1/2）

（1）（2/7）（1/2）（1/2）= （1/14）

S 方法：

— Me@2012.10.21

— Me@2012.10.17

# There

Existence, 3.4

Why does the universe exist? 1.4

Dogs do not exist

= There are no dogs

The non-existence is not a property of the dogs. Instead, the “non-existence of dogs” is a property of “there”, the system containing the dogs, such as a room. In other words, “there” is a location, an address, or an environment.

The universe exists = There is a universe

The universe does not exist = There is no universe

These two sentences are both meaningless, because the definition of the word “universe” is “everything”. The universe has no “outside”. The universe has no “there”. The question “Where is the universe?” makes no sense.

— Me@2012.10.15

# Jailbreak

iOS jailbreaking is the process of removing the limitations imposed by Apple on devices running the iOS operating system through the use of hardware/software exploits – such devices include the iPhone, iPod touch, iPad, and second generation Apple TV. Jailbreaking allows iOS users to gain root access to the operating system, allowing them to download additional applications, extensions, and themes that are unavailable through the official Apple App Store.

— Wikipedia on iOS jailbreaking

[You should also]

— Me@2011.12.10

# 原因 2.4

（安：無錯。如果在日常生活中，把一件事的任何一個「先決條件」，也用「原因」這個詞來表達的話，就會出現一些十分奇怪的講法，但又貌似正確。

— Me@2012.10.19

# Existence, 3.3

Why does the universe exist? 1.3

In “dogs do not exist in this room“, the non-existence is not a property of the dogs.

Instead, the “non-existence of dogs” is a property of the room.

— Me@2012.10.15

# Writing it down

Remember kids, the only difference between screwing around and science is writing it down.

「玩耍」和「科學」的近乎唯一差別是，「科學」有紀錄，可以累積經驗。

— Me@2012-10-19 06:07:40 AM

— Me@2012-10-19 06:13:58 AM

# 淘汰賽 1.2

P 方法：

S 方法：

(_)(_)  (_)(_)  (_)(_)  (_)(_)

（＿）
（   ）

（＿）
（8!）

A、B 在第一對參賽位置、

(A)(B)  (_)(_)  (_)(_)  (_)(_)

A、B 在第二對參賽位置、

(_)(_)  (A)(B)  (_)(_)  (_)(_)

A、B 在第三對參賽位置、

(_)(_)  (_)(_)  (A)(B)  (_)(_)

(_)(_)  (_)(_)  (_)(_)  (A)(B)

（4）
＿＿
（8!）

(B)(A)  (_)(_)  (_)(_)  (_)(_)

(_)(_)  (B)(A)  (_)(_)  (_)(_)

(_)(_)  (_)(_)  (B)(A)  (_)(_)

(_)(_)  (_)(_)  (_)(_)  (B)(A)

（4）（2）
＿＿＿
（8!）

（4）（2）（6!）
＿＿＿＿＿
（8!）

（4）（2）（6!）
＿＿＿＿＿
（8!）

= （1/7）

— Me@2012.10.18

— Me@2012.10.18

# Why does the universe exist? 1.2

Existence, 3.2

Verification principle, 3

The sentence “the universe does not exist” has no meanings, because it violates the confirmation principle. When we say that “dogs do not exist in this room“, we can search all over this room to prove the non-existence of dogs. However, the definition of the word “universe” is “everything”. So the universe has no “outside”. The universe is not contained within a bigger system. So when we say that “the universe does not exist“, we cannot search all over some bigger environment to prove the non-existence of the universe, even in principle.

The sentence “the universe exists” has the same problem. It also violates the confirmation principle. When we say that “a dog exists in this room“, as long as we can find a dog within the room, we prove the existence of the dog. However, the definition of the word “universe” is “everything”. So the universe has no “outside”. The universe is not contained within a bigger system. So when we say that “the universe exists“, we cannot “find” the universe, even in principle.

Whatever we find, such as a dog, a room, a house, a city, etc., is only part of the universe. “Part of the universe exists” does not imply “the universe exists“. For example, I have part of one million dollars, such as 500 thousand dollars, doesn’t mean that I have one million dollars.

— Me@2012.10.15

— Me@2012.10.18

# 淘汰賽 1.1

P 方法：

(_)(_)  (_)(_)  (_)(_)  (_)(_)

（＿）（＿）

（1）（＿）

（1）（1/7）

（1）（1/7）= （1/7）

S 方法：

— Me@2012.10.17

— Me@2012.10.17