# Then and Now

The most distant a memory, the blurrier it is.

If a memory was completely vivid, you would not be able to distinguish between then and now.

— Westworld (TV series)

— paraphrased

— Me@2018-01-13 10:43:04 AM

# Zooming out

In this morning’s dream, I had seen an ultra zooming out of the universe, where in the end the universe became a particle of a super-universe.

Perhaps the afterlife (or near-death experience) is like this kind of bizarre feeling.

— Me@2011.08.17

It is a fractal.

— Me@2011.08.22

Note: This kind of feeling is unhealthy, since it is induced by eating too little food.

— Me@2017.01.09

Several months ago, I had another this kind of super-feeling dream, in which I could get a time traveling feeling.

— Me@2011.08.17

# 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

# Share

Publish! 7.2

We like to share because we like our information, ideas, and insights to have a future.

— Me@2011.08.07

# Passion Test

The Top Idea in Your Mind, 6 | 事業愛情觀 6

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Am I willing to spend INFINITE time on it?

— Me@2015-07-05 04:26:24 PM

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Do you want it to be one of your lifelong projects?

— Me@2015-07-12 11:00:11 AM

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6.54

My propositions serve as elucidations in the following way: anyone who understands me eventually recognizes them as nonsensical, when he has used them — as steps — to climb beyond them. (He must, so to speak, throw away the ladder after he has climbed up it.)

He must transcend these propositions, and then he will see the world aright.

— Tractatus Logico-Philosophicus

— Ludwig Wittgenstein

Before climbing a ladder, it is higher than you; after, you are higher than it.

— Me@2011.07.31

# End-of-history illusion

The end-of-history illusion is a psychological illusion in which individuals believe that they have experienced significant personal growth and changes in tastes up to the present moment, but will not substantially grow or mature in the future. Despite recognizing that their perceptions have evolved, individuals predict that their perceptions will remain roughly the same in the future.

The illusion is based in the fact that at any given developmental stage, an individual can observe a relatively low level of maturity in previous stages. The phenomenon affects teenagers, middle-aged individuals, and seniors. In general, people tend to see significant changes in hindsight, but fail to predict that these changes will continue.

— Wikipedia on End-of-history illusion

2015.03.29 Sunday ACHK

# Interest

1. The price paid for obtaining, or price received for providing, money or goods in a credit transaction, calculated as a fraction of the amount or value of what was borrowed

2. A great attention and concern from someone or something; intellectual curiosity

— Wiktionary

interest 2 ~ interest 1

X is interesting

~ X can generate a lot of interest

~ X can generate a lot of automatic profits

~ X can generate a lot of next steps

— Me@2015-02-19 08:02:49 PM

# 生 | 新

live ~ keep changing

living things ~ things that keep changing

— Me@2014-11-20 08:09:54 AM

# Fasting creates new brain cells

So, what’s going on?

Well, when they examined the brains of the fasting mice.

They found something extraordinary.

These green objects are newborn brain cells.

These three here are brand new?

Sporadic bouts of hunger actually trigger new neurons to grow.

Why should a brain start to generate new nerve cells when you stop feeding it?

If you’re hungry, you’d better increase your cognitive ability.

That will give you a survival advantage, if you can remember where the location of the food is and so on.

It seems that fasting stresses your grey matter the way that exercise stresses your muscles.

So hunger really does make you sharper?

Yes. We think so.

Mark’s research is starting to point towards a simple conclusion.

Alternate day fasting has better effects on the brain than does a lower-amount-of-daily-calorie restriction.

It’s true of mice, but he needs to do proper human trials to prove it’s true in us.

I’ve come to the end of my search to find out how to eat, fast and live longer.

The official advice is, eat at least 2,000 calories a day, and if you really want to fast, even on an intermittent basis, see your doctor first, because there are people it could harm such as pregnant women or those who are already underweight.

— Eat, Fast and Live Longer

— BBC Horizon

— Me@2013-10-05 1:06 AM

2014.11.13 Thursday ACHK

# Exponential

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

# End 2

Every good thing has an end.

ended

~ 完

~ completed

completed ~ ended in a good way

— Me@2011.07.18

— Me@2014.09.14

# 氣功

「真氣功」中的「氣」，是指「呼吸」。

— Me@2014-08-20 01:42:40 PM

# Change

By the definition of “time”, anything in time must be changing. Anything not in time, such as the dead, cannot change.

If you do not keep changing for better (improve, grow), you are effectively dead.

— Me@2011.10.10

Although this paragraph is not 100% accurate, its spirit is useful.

— Me@2014.08.09

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— Me@2011.07.03

— Me@2014.07.22

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# pLaY, 4

work ~ progress on your original role

play ~ progress on your imagined role

work ~ act your original role

play ~ act another role

game ~ another role

— Me@2014-07-05 11:46:54 PM

# Open Source MindOS, 2.3

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 M. C. Escher Though this image is subject to copyright, its use is covered by the U.S. fair use laws because 1. It illustrates an educational article … 2. It is a low resolution image. 3. It is not replaceable with an uncopyrighted or freely copyrighted image of comparable educational value.

「不斷修正」和「不斷創造」的後果是，雙方各自也不斷重生成，新版本的自己。二人對於對方來說，也會不斷帶來新鮮感。那樣，愛情方能長久。

— Me@2014.07.14

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# Open Source MindOS, 2.2

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（安：但是，有時有些「缺點」，自己不單願意，甚至非常想改，但偏偏改不到。那樣，那個「缺點」，還算不算是「人格問題」？）

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「缺點」有四大層次：

1. 你不知道自己有缺點；

2. 你知道自己有缺點，但不知道是什麼缺點；

3. 你知道自己有缺點，而且知道有什麼缺點，但偏偏不知道如何改正；

4. 你知道自己有缺點，而且知道有什麼缺點，再加上知道如何改正。

— Me@2014.06.30

 M. C. Escher Though this image is subject to copyright, its use is covered by the U.S. fair use laws because 1. It illustrates an educational article … 2. It is a low resolution image. 3. It is not replaceable with an uncopyrighted or freely copyrighted image of comparable educational value.

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