# Life, 3

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We exist in time because time is change.

Growing is part of the definition of life. Growing is a kind of change.

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Also, without time/change, there would be no thinking and no thoughts.

— Me@2017-12-26 11:42 am

— Me@2018-05-23 10:05:03 PM

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time ~ change

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Time is logically necessary if change is necessary.

— Me@2018-02-04 09:07:48 PM

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# Story, 7

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story ~ a storage device for pieces of experience

— Me@2017-09-25 11:37:10 PM

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# Privacy

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privacy ~ I don’t want to let you see my other selves

— Me@2011.08.19

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privacy ~ I don’t want to let you see my private selves

— Me@2017-07-15 6:28 AM

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# The language of Change 1.2

Energy conservation, 6.2 | Energy 5.2

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time ~ change

energy ~ the ability of _keeping_ changing

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constant velocity ~ the amount of an object’s change of position, measured with respect to its observer’s unit of change, is constant

$s = \Delta x$

$v = \frac{s}{\Delta t} = \frac{\Delta x}{\Delta t}$

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kinetic energy ~ the amount of the ability of keeping changing an object’s position

$\frac{1}{2} m v^2$ ~ the square of (the amount of change of position, relative to the observer’s unit of change)

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Energy difference is _not_ exactly a measurement of the amount of change, time interval is.

— Me@2018-02-20 09:39:30 AM

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# The language of Change

Energy conservation, 6 | Energy 5

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time ~ change

energy ~ the ability of causing change

Assuming

1. a system of one single particle

2. has only kinetic energy

3. and that kinetic energy is conserved.

conservation of energy ~ an object’s potential amount of change of position, measured with respect to its observer’s unit of change, is constant

$s = \Delta x$

$v = \frac{s}{\Delta t} = \frac{\Delta x}{\Delta t}$

— Me@2018-02-15 02:21:20 PM

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Note:

The above argument has a bug:

If the mass m is constant, the kinetic energy $E_K$ should be proportional to velocity squared $v^2$, instead of velocity $v$.

$E_K = \frac{1}{2} m v^2$

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However, the above argument is still technically correct:

When $E_K$ is constant, $v^2$ is constant. In turn, the magnitude of $v$ also remains unchanged.

— Me@2018-02-19 09:37:24 PM

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# Definition of Time, Prime

Energy 4

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time ~ change

energy ~ the ability of causing change

— Me@2018-02-15 10:20:25 AM

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# English

Yes, English can be weird. It can be understood through tough thorough thought, though.

— David Burge‏

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2018.02.11 Sunday ACHK

# Euler Formula

Exponential, 2

$a^x$

general exponential increase ~ the effects are cumulative

$e^x$

natural exponential increase ~ every step has immediate and cumulative effects

— Me@2014-10-29 04:44:51 PM

exponent growth

$e^x = \lim_{n \to \infty} \left(1 + \frac{x}{n}\right)^n$

~ compound interest effects with infinitesimal time intervals

multiply -1

~ rotate to the opposite direction

(rotate the position vector of a number on the real number line to the opposite direction)

~ rotate 180 degrees

multiply i

~ rotate to the perpendicular direction

~ rotate 90 degrees

For example, the complex number (3, 0) times i equals (0, 3):

$3 \times i = 3 i$
$(3, 0) (0, 1) = (0, 3)$

multiplying i

~ change the direction to the one perpendicular to the current moving direction

(current moving direction ~ the direction of a number’s position vector)

exponential growth with an imaginary amount

$e^{i \theta} = \lim_{n \to \infty} \left( 1 + \frac{i \theta}{n} \right)^n$

~ change the direction to the one perpendicular to the current moving direction continuously

~ rotate $\theta$ radians

— Me@2016-06-05 04:04:13 PM

# 注定外傳 2.6

Can it be Otherwise? 2.6 | The Beginning of Time, 7.3

『所有』，就是『場所之有』。

— Me@2016-05-18 11:40:31 AM

# Quantum Indeterminacy

Quantum indeterminacy is the apparent necessary incompleteness in the description of a physical system, that has become one of the characteristics of the standard description of quantum physics.

Indeterminacy in measurement was not an innovation of quantum mechanics, since it had been established early on by experimentalists that errors in measurement may lead to indeterminate outcomes. However, by the later half of the eighteenth century, measurement errors were well understood and it was known that they could either be reduced by better equipment or accounted for by statistical error models. In quantum mechanics, however, indeterminacy is of a much more fundamental nature, having nothing to do with errors or disturbance.

— Wikipedia on Quantum indeterminacy

Quantum indeterminacy is the inability to predict the behaviour of the system with 100% accuracy, even in principle.

If everything is connected

, quantum indeterminacy is due to the logical fact that, by definition, a “part” cannot contain (all the information of) the “whole”.

An observer (A) cannot separate itself from the system (B) that it wants to observe, because an observation is an interaction between the observer and the observed

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In order to get a perfect prediction of a measurement result, observer (A) must have all the information of the present state of the whole system (A+B). However, there are two logical difficulties.

First, observer A cannot have all the information about (A+B).

Second, observer A cannot observe itself to get (all of) its present state information, since an observation is an interaction between two entities. Logically, it is impossible for something to interact with itself directly. Just as logically, it is impossible for your right hand to hold your right hand itself.

So the information observer A can get (to the greatest extent) is all the information about B, which is only part of the system (A+B) it (A) needs to know in order to get a prefect prediction for the evolution of the system B.

— Me@2015-09-14 08:12:32 PM

# 機遇再生論 1.3

『機遇再生論』的大概意思是，所有可能發生的事情，例如重生，在無限長的未來時間中，必會發生。

『機遇再生論』的大概意思是，所有可能發生的事情，例如重生，只要等足夠長的時間，總會發生。

— Me@2015.04.08

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# Personal Magic

I don’t know magic

~ I have no intelligence

Intelligence is the ability to perform magic.

Intelligence is what makes the seemingly impossible possible.

— Me@2014-08-31 5:29 PM

# 希望

— Me@2013.10.17 15.11.41

— Me@2013-07-23 08:41:41 PM

# Tactics and Strategy

What’s the difference between the adjectives “strategic” and “tactical”?

Tactics is knowing what to do when there is something to do. Strategy is knowing what to do when there is nothing to do.

— Savielly Tartakower

2013.10.28 Monday ACHK

# A good speaker

Definition of a good speaker:

His overrunning does not annoy you.

— Me@2011.04.27

If you do not mind if a speaker overruns a speech, he must be a good speaker.

— Me@2013.09.12

# 量子力學 1.6

（安：無錯。但是，如果在其他情況，我們考慮的物理系統，都不會是「整個宇宙」。那樣，那個物理系統，就一定有「外面」。而我的講法，就有可能是正確的。）

「機」字在日常生活中，廣義是指「因素」，即是「原因元素」，或者「先決條件之一」；而狹義是指「未知因素」，或者「控制範圍以外的因素」。例如，「機會」就是「數個因素的會合」；「機遇」就會「多個因素的相遇」。當你說「有機會」時，你的意思是：

— Me@2013.08.30