Donkey Kong Country


Donkey Kong Country is a 1994 platform game developed by Rare and published by Nintendo for the Super Nintendo Entertainment System (SNES). The game centres on Donkey Kong and his friend Diddy Kong, who are on a quest to recover Donkey Kong’s stolen banana hoard from King K. Rool and the Kremlings.

— Wikipedia on Donkey Kong Country



2018.04.13 Friday ACHK

潛行凶間 16.3

Inception 16.3

這段改編自 2010 年 8 月 13 日的對話。







3. 多重自我

3.1 每一個人,其實有超過一個自我。

3.2 而每一個自我,其實有超過一個層次的意識。








— Me@2018-04-08 10:51:30 AM



2018.04.08 Sunday (c) All rights reserved by ACHK



Quark and Sakonna are sharing the same cell.

I hope you’re happy.

I am a Vulcan. My emotional state is irrelevant.

Well I’m a Ferengi. And my emotional state is very relevant. And right now, I’m miserable. And it’s all your fault.

You were well paid for your assistance.

Not well enough. Look, why don’t you just tell them what they want to know?

Sakonna just stares at him.

DEEP SPACE: “The Maquis, II” – 02/17/94 – ACT FOUR 42.


(continuing, talking confidentially) I know the Cardassians can’t be trusted. I know that the Central Command would like nothing better than to destroy the Federation colonies in the Demilitarized Zone.

Then you agree with our position?

Not for a second.

Why not?

Because your position is… (searching for the right word) Illogical.

This takes Sakonna off guard.

Do you propose to lecture me on logic?

I don’t want to, but you leave me no choice. It all comes down to the third Rule of Acquisition.

(off her blank reaction)

You don’t know that one, do you?

I am not well versed in Ferengi philosophy.

Remind me to get you a copy of the Rules. You never know when they’ll come in handy. Now, the third rule clearly states,

Never pay more for an acquisition than you have to.

Logical. But I fail to see how that applies to my situation.

DEEP SPACE: “The Maquis, II” – 02/17/94 – ACT FOUR 43.


You want to acquire peace. Fine.

Peace is good. But how much are you
willing to pay for it?

Whatever it costs.

That’s the kind of irresponsible spending that causes so many business ventures to fail.

You’re forgetting the third rule. Right now peace could be bought at a bargain price and you don’t even realize it.

I find this very confusing.

Then I’ll make it so simple that even a Vulcan can understand. The Central Command has been caught red-handed smuggling weapons to their settlers. So from now on, every ship approaching the Demilitarized Zone will be searched. Without the support of the Central Command, the Cardassian settlers won’t be so eager to fight.

You forget the weapons they already have.

They have weapons… you have weapons… everyone has weapons. But right now, no one has a clear advantage. So the price of peace is at an all-time low. This is the perfect time to sit down and hammer out an agreement. Don’t you get it… attacking the Cardassians now will only escalate the conflict and make peace more expensive in the long run. Now I ask you, is that logical?

Quark sits down, pleased with his performance.

— Star Trek: Deep Space Nine



2018.03.16 Friday ACHK

潛行凶間 16.2

Inception 16.2

這段改編自 2010 年 8 月 13 日的對話。



2. 多層夢









— Me@2018-03-08 08:32:52 PM



2018.03.08 Thursday (c) All rights reserved by ACHK

On Lisp


Lisp is an especially good language for writing extensible programs because it is itself an extensible program.

Because Lisp gives you the freedom to define your own operators, you can mold it into just the language you need. If you’re writing a text-editor, you can turn Lisp into a language for writing text-editors. If you’re writing a CAD program, you can turn Lisp into a language for writing CAD programs. And if you’re not sure yet what kind of program you’re writing, it’s a safe bet to write it in Lisp. Whatever kind of program yours turns out to be, Lisp will, during the writing of it, have evolved into a language for writing that kind of program.

— On Lisp: Advanced Techniques for Common Lisp

— Paul Graham



2018.02.21 Wednesday ACHK

潛行凶間 16

Inception 16

這段改編自 2010 年 8 月 13 日的對話。







1. 清醒夢

1.1 有些人在某些時候,在夢知道自己在發夢,卻又可以保持住,發夢的狀態。

1.2 那些人之中的部分人,在那些清醒夢時候的部分時候,甚至可以控制著,那些夢境的劇情演變。







2. 多層夢

有時,明明已經起了床,關掉了鬧鐘;怎料,「明明已經起了床,關掉了鬧鐘」這劇情,只是另一個夢 — 我仍然未醒來。

3. 多重自我

3.1 每一個人,其實有超過一個自我。

3.2 而每一個自我,其實有超過一個層次的意識。

— Me@2018.02.18



2018.02.18 Sunday (c) All rights reserved by ACHK


Toy Story

A Bug’s Life

Toy Story 2  

Monsters, Inc.

Finding Nemo

The Incredibles




Toy Story 3

Inside Out

— Me@2016-10-21 03:11:28 PM

2016.10.21 Friday ACHK

Intellectual Headaches

Game design

They got the key, and then some other stuff happened, and then they reached the door, and were able to open it; but “acquiring the key” and “opening the door” were stored as two separate, disconnected events in the player’s mind.

If the player had encountered the locked door first, tried to open it, been unable to, and then found the key and used it to open the door, the causal link would be unmistakable. You use the key to open the locked door, because you can’t open the locked door without the key.

Math education

I’ve drawn parallels between game design and education before, but it still took me a while to realize that problem-solution ordering issues crop up just as often in the classroom as they do in games.

Remember how, in high school math class, a lot of the work you were doing felt really, really pointless?

Consider Dan Meyer’s question for math educators: if math is the aspirin, then how do you create the headache?

In other words: if you introduce the solution (in this case, a new kind of math) before introducing the kind of problems that it’s meant to solve, the solution is likely to come across as pointless and arbitrary. But if you first let students try to tackle these problems with the math they already understand, they’re likely to come away with a kind of intellectual “headache” – and, therefore, to better understand the purpose of the “aspirin” you’re trying to sell.

Functional programming

— Locked doors, headaches, and intellectual need

— 27 October 2015

— Affording Play

Here are some excerpts of an elegant essay. Please go to the author’s website to read the whole.

— Me@2015-11-03 03:46:41 PM

2015.11.03 Tuesday ACHK

Person of Interest

Person of Interest is an American science fiction crime drama television series created by Jonathan Nolan that premiered on September 22, 2011, on CBS. It is executive produced by Nolan, alongside J. J. Abrams, Bryan Burk, and Greg Plageman. It stars Jim Caviezel as John Reese, a former CIA agent who is presumed dead. He is approached by a mysterious billionaire named Harold Finch (Michael Emerson), who is trying to prevent violent crimes before they happen by using an advanced surveillance system dubbed “The Machine”, which turns out to have evolved into a sentient AI.

— Wikipedia on Person of Interest (TV series)

2015.10.05 Monday ACHK

如何拯救眾生 2

How to improve the world indefinitely?



There is law of conservation of energy.
There is law of conservation of mass.
But, there is no law of conservation of ideas.


— Me



If you have an apple and I have an apple, and we exchange apples, we both still only have one apple. But if you have an idea and I have an idea, and we exchange ideas, we each now have two ideas.

— George Bernard Shaw



. . . it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it. Its peculiar character, too, is that no one possesses the less, because every other possesses the whole of it. He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.

That ideas should freely spread from one to another over the globe, for the moral and mutual instruction of man, and improvement of his condition, seems to have been peculiarly and benevolently designed by nature, …

— Thomas Jefferson




2008.10.21 Tuesday (c) All rights reserved by ACHK

如何拯救眾生 1


The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed. — Carl Jung

Generalized Newton’s Third Law: You cannot change others without being changed. — John Wheeler

改變別人時, 你也會被改變. — Me



You are an A person. You befriend with an F person. The result is that your friend becomes a better person, you become a worse person. In theory, you become a C person. Your friend becomes a C person. In practice, since being a bad person is much easier than being a good person, you two will become both F people. — Me

無友不如己者. — 孔子

Be slow in making friends, slower in changing. — Benjamin Franklin

You have to know how to accept rejection and reject acceptance. — Ray Bradbury

If you hire all A people, he said, they’ll also hire A people. But if you hire B people, they’ll hire the C people and then it’s all over. — Joel Spolsky



So that means you cannot help anyone weaker than you?


Instead, you should help others. But you have to help others in a smart way. — Me




. . . it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it. Its peculiar character, too, is that no one possesses the less, because every other possesses the whole of it. He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.

— Thomas Jefferson




2008.10.22 Wednesday (c) All rights reserved by ACHK



Predestination is a 2014 Australian science fiction film, written and directed by Michael and Peter Spierig.

— Wikipedia on Predestination (film)



2015.06.25 Thursday ACHK


這段改編自 2010 年 4 月 18 日的對話。



This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.

詳情請參閱 BBC 的紀錄片《The Human Face》。 


— Me@2015.04.23

2015.04.26 Sunday (c) All rights reserved by ACHK


Interstellar is a 2014 space adventure film directed by Christopher Nolan.

This image is of a poster, and the copyright for it is most likely owned by either the publisher or the creator of the work depicted. It is believed that the use of scaled-down, low-resolution images of posters

1. to provide critical commentary on the film, event, etc. in question or of the poster itself, not solely for illustration

2. on the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation,

qualifies as fair use under United States copyright law. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement.

Director Christopher Nolan said influences on Interstellar included the “key touchstones” of science fiction cinema; Metropolis (1927), 2001: A Space Odyssey (1968), and Blade Runner (1982). Nolan said about 2001, “The movies you grow up with, the culture you absorb through the decades, become part of your expectations while watching a film. So you can’t make any film in a vacuum. We’re making a science-fiction film… You can’t pretend 2001 doesn’t exist when you’re making Interstellar.” He also said Star Wars (1977) and Alien (1979) influenced Interstellar ‘​s production design: “Those always stuck in my head as being how you need to approach science-fiction. It has to feel used — as used and as real as the world we live in.” Andrei Tarkovsky’s The Mirror influenced “elemental things in the story to do with wind and dust and water”.

Early in the process, Thorne laid down a couple of guidelines; that nothing would violate established physical laws, and that all the wild speculations would spring from science and not from the fertile mind of a screenwriter. Nolan accepted these terms as long as they did not get in the way of the making of the movie. At one point Thorne, spent two weeks trying to talk Nolan out of an idea about a character travelling faster than light before Nolan finally gave up. According to Thorne, the element which has the highest degree of artistic freedom is the clouds of ice on one of the planets they visit, which are structures that probably go beyond the material strength that ice would be able to support.

— Wikipedia on Interstellar (film)

2014.11.13 Thursday ACHK

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 think about this in evolutionary terms, it makes sense.

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

I am a Strange Loop, 4.3

記憶奇異圈 1.3 | Godel, Escher, Bach, 2.3

這段改編自 2010 年 4 月 10 日的對話。


有關,但它只是例子,而不是主旨。Douglas 想帶出的是,「自我」意識,其實來自一些「Strange Loop」(奇異圈)。




Douglas 的成名作是《Godel, Escher, Bach》,就是透過眾多「奇異圈」的例子,企圖帶出「自我」和「意識」的來源。但是,由於書中的例子,橫跨了太多課題,例如,邏輯、數學、物理、繪畫、音樂、文字等,而又橫跨得十分精采,導致近乎沒有人,知道該書的主旨是什麼。

所以,作者於大概三十年後,寫了《I am a Strange Loop》(「我」是一個奇異圈)。為免再令讀者誤會,作者把該書的主旨,直接用作書名。



— Me@2014.09.29

2014.09.29 Monday (c) All rights reserved by ACHK