Tuesday, December 27, 2005

Ligers

When a male lion mates with a female tiger, the offspring is known as a liger. Ligers are damn funny. They are nature's clown. Look:


Look at its face -- it's just a tiger who doesn't understand why its body is huge. At one point the liger Wikipedia article states,
Ligers may exhibit conflicts between the social habits of the lion and the solitary habits of the tiger. Their lion heritage wants them to form social groups, but their tiger heritage urges them to be intolerant of company. Opponents of deliberate hybridization say this causes confusion and depression for the animals, especially after sexual maturity.
I read this and I was just laughing at this ridiculous buffoon of an animal. Good times.

Friday, December 23, 2005

Eyes of Nye

Remember Bill Nye, the Science Guy? I'm referring to the guy (a good comedian and educator and an actual, talented scientist) as well as his 90s TV show on PBS.

Bill Nye is awesome. That show was classic -- it truly made science fun. Many classes, from elementary to high school, make use of Bill Nye episodes and clips. I remember that my classes always loved it. I remember watching it on TV every day.



So I just learned that Bill Nye has a new show for adults called The Eyes of Nye, which are the instruments through which you see the world when you watch the show. I think they were trying to rhyme "Nye" with "eyes" the way they had rhymed it with "science guy". The program website makes it look interesting, so I will have to find a way to watch some episodes. Check it out.

Monday, December 19, 2005

When Profit Motives Don't Line Up

Corporations are motivated by a desire to maximize profit. But too often in America today, the profit motive doesn't coincide with values that we know we want our corporations to have. What you have to do to make the most profit almost never lines up with what you have to do to treat customers well, compensate employees fairly, or minimize negative impact on the environment.

Bad Customer Service

Fifty years ago, if you ran a small store and you mistreated a customer, that customer would complain to his friends and you'd lose a significant amount of patronage. The customer was "always right" because positive word of mouth was essential to the success of most businesses.

But when you're a 21st century nationwide conglomerate, you'll often find that a more effective business strategy is to get the customers in and out as quickly as possible, with minimum effort from your paid labor. So when a dissatisfied customer disrupts the quick and steady flow of things, all you want to do is get him out of the way and make room for the majority of customers, the ones your product or service successfully satisfies.

Bad Employee Compensation

It's profitable to pay your low-skilled employees their market value of $6 an hour instead of a realistic living wage of $15. This news story talks about Wal-Mart as a textbook case. From the article:
Wal-Mart brags about how its low prices help poor Americans, but its low wages are helping increase the number of Americans in poverty.
Bad Environmental Policy

If you're a corporation, it's profitable to screw over the environment. For example, think about the packaging a corporation decides to use for its products. The decision is made based on what is attractive to the customer, and what is low-cost. It doesn't affect the bottom line if the packaging isn't bio-degradable. It certainly affects the communities where landfills are built, but that is not the corporation's concern.

What's Good for America

Many people will agree with a statement like this one:
What's good for business is good for America.
But now you can see why that's wrong. What's good for corporations is increasing their bottom line. The actions that cause corporations' bottom lines to increase may or may not be good for America. They might be good if:

Corporations increase their bottom lines by being more productive, and selling more goods for the same production costs. If the trend is that more goods become affordable to the average American, then it could be good for America by increasing the quality of life.

Corporations are able to increase their bottom line through a process that also requires the hiring of well-compensated employees. That way, something that's good for corporations will create more jobs.

It could be good for America by a coincidence. For example, a tax break for one business might enable them to expand, and in the process they tear down their old factory and build a better, modern one, and its newer technology emits fewer pollutants, ozone-depleting agents, and/or greenhouse gases.


Likewise, what's good for corporations could be bad for society if:

A tax break to a corporation lowers its costs and increases its profit margin. The board of directors votes to use this new profit to increase the CEO's salary, and buy a round of private jets for other executives. This doesn't help America at all. This kind of thing is actually a growing trend in the 21st-century economy, and it is creating an obscene concentration of wealth. You can say that it helps the companies that sell the jets, but that isn't necessarily good for America either.

A corporation might find a way to cut costs by using a new technology, such as a new type of robot. As a result, it will fire its workers by the thousand. This is also a huge trend that contributes to the increasing concentration of wealth, and the increasingly robotic nation.

It could be bad for America by a coincidence. For example, a corporation might use money from a tax break to lobby for deregulation of its industry, which is bad for American consumers. (The corporation might also use the money to lobby for more tax breaks.)


The Government's Role

The government's role should not be to simply promote whatever is good for business. The government's role in regulating business is to create policies that cause corporations' profit incentives to line up with positive social goals. For example:

The government can aggressively investigate incidents of treating customers unfairly, and fine guilty corporations. That way, customer service will be more linked to profit margins.

The government can raise the minimum wage. That way, companies that can afford to pay employees a living wage can no longer use part of that money to increase a few executives' already high salaries.

The government can make the air a finite commodity, like land, that belongs to the people. It can charge corporations for the privilege of dumping waste into the air, which can only hold so much pollution before it poisons us all to death. The government can also create a law that forces corporations to take responsibility for their products' end-cycle costs, and eliminate all landfills.


Corporations don't benefit society by making profit, they benefit society when they improve the average American's quality of life. But corporations are designed to only strive for the former, so it is the government's role to line it up with the latter.

Friday, December 16, 2005

Trading Bibles for Porn

Atheism is so far outside of the nation's public discourse. It's refreshing to watch what happens when the mainstream media encounters it. MSNBC ran a story about a San Antonio college atheist group Trading Bibles for Porn. Click to watch the free video.

What can I say, the atheist group is correct. I don't know how effective this will be to get people to question their religions, but it is certainly an effective publicity stunt for atheism.

Either way, the video is very entertaining. Tucker Carlson is a good guy, but I like watching him deal with opposing viewpoints.

And, since we're on the subject of atheism, here is a great little post on the subject.

Souls Are Not Real

I don't think souls actually exist. If you do, please answer these questions for me:

Are new souls created for new humans? Or are old souls reincarnated?

At what point does the soul enter a human body? At birth? In the womb after some months of pregnancy? The fertilized egg? Birth does not occur in an instant. When is the soul born?

At what point does the soul leave a human body? Sleep? Unconsciousness? Stopping the heart beat? Lack of oxygen to the brain? Death does not occur in an instant. When does the soul die?

How does the soul affect your body? What physical matter is it associated with? Obviously the soul is not associated with the entire body. Your skin is constantly falling off and being replaced, so your soul isn't in those cells. Your arms and legs can be blown to bits and you'll still have your full soul, right? What if your head is chopped off? You are still alive. The brain can still function for a few seconds. (If you don't believe it, you can instead think of having an operation to neatly remove your head. You can imagine "body transplant" operations in the future.)

What role does the soul play? It's probably not responsible for your life functions. Your body can stay alive by utilizing the laws of physics. So can other organisms, and probably not all of them have souls. The soul probably is not responsible for your rational thinking. You have areas of the brain designed for that. Plus, computers can do it, and they don't have souls, right? The soul probably isn't responsible for your emotions. Emotions are a well-documented function of the brain, present in many other animals. Plus, any neurosurgeon knows that there is a direct link between your emotions and the physical state of regions in the brain.

Do other organisms have souls? If so, which ones? Do bacteria have souls? If not, why do only humans have souls? At what point in the evolution of the human species did the soul appear?


According to this well-known poll about what Americans believe, 84% of adults believe that the soul survives after death. So at least that many must believe that there is such a thing as a soul. But I don't. Please post your thoughts, and address my questions, by posting a comment.

The Wason Card Problem

This is a simple, classic logic puzzle that over 90% of Americans get wrong. It is a good way to gain insight on a person's logical thinking process.

You are working with a deck of four cards that have a letter on one side and a number on the other. They are lying on the table with different sides facing up, as shown:
 
 
 

A

 
 

 
 
 

B

 
 

 
 
 

4

 
 

 
 
 

7

 
 


One theorem about the deck states: If a card has a vowel on one side, then it has an even number on the other side.

Which cards do you have to flip over to verify that the theorem is not false?

Do not read on until you think you have the answer.

The answer is that you must flip over the first and last card. Almost everyone correctly identifies the A. Many people make the mistake of identifying the 4 as well. Few people correctly identify the 7.

If your answer was correct, your grasp of basic logic is exceptional. The problem is straightforward, but it happens to be counterintuitive to humans.

You can read the full explanation at the Skeptic's Dictionary's Critical Thinking mini-lesson 3.

Sunday, December 11, 2005

Great Pickup Line

This is the world's best pickup line:
If I were to ask you whether you'd go out with me, would your answer be the same as your answer to this question?
Observe how effective it is in this sample dialogue.

Woman: Say, who is this loser coming over to hit on me? I am way out of his league.

Man: (walking up) If I were to ask you whether you'd go out with me, would your answer be the same as your answer to this question? [Editor's note: Zing!]

Woman: No, go away.

Man: OK, haha, actually you just agreed to go out with me.

Woman: I have a boyfriend.

Man: OK so I guess that makes you unfaithful, haha! See, I kinda hijacked the linguistic concept of a question in order to spring a logical trap on you.

Woman: Are you like, deaf?

Man: Look, you answered "no" to my pickup line, as in "no I will not not go out with you". Gotcha!

Stronger Man: Is this loser trying to hit on you, Charlene? It's hard to tell.

Woman: Yeah, take care of him, Woody.

Stronger Man: Come on punk, let's go.

Man: Wait, wait! Uh, if I were to not ask you not to not beat me up, would you respond the same as if I... ow! Ow!

The Axiom of Choice

Imagine you have a hundred buckets, each containing one or more objects. Let's say you pick one object out of each bucket, and then...


Wait, can we actually say that? Are you sure you would be able to pick an object out of each of the buckets?

Well, of course you could. It's easy to just reach in and grab an object when the bucket contains a set of discrete physical objects. But an important question to ask is this:

Which object do you grab?

You would probably grab one "at random", without thinking about it. Actually, you are intuitively following a crude selection procedure that probably looks like this:
  1. Reach hand into center of bucket and grab the first object you hit.
  2. If your hand doesn't hit any objects, move it around in larger and larger circles, and you will hit one before you reach the walls of the bucket.
Even if you hadn't explicitly described such a procedure before, you would be sure that one exists, because you have picked objects out of baskets at random before. This strong intuition is accurate in real-world cases like that, but it breaks down if you try to use it to understand a fundamental axiom of set theory: the axiom of choice.

Which element do you choose?

Suppose you have a hundred sets, each containing at least one element. Could you choose an element from each? It seems simple enough. If they were all finite sets of integers, for example, you could simply go and choose the element with the lowest value from each set.

But what if one of the sets contained all the real numbers greater than 0 and less than 1? This set would not have a lowest real number. OK, no biggie, for sets like that you can always just take the average of the two boundaries (in this case, 1/2).

But then what if one of the sets just contained the three colors red, green and blue? Obviously you need a separate type of selection procedure for that one, such as "always pick green".


If each of the hundred sets were completely different, you might just resort to going through them all, one by one, and writing notes to yourself: "pick this here, pick that there". And this would still constitute a valid selection procedure. So far, your intuition would be right about being able to choose an element from each set...

...But what if there were an infinite number of sets? This time you can't just write an infinite number of notes to yourself, because you can't have an infinitely long selection procedure. So are you sure you could decide which element to pick out of each one?

The axiom of choice simply states that this is possible for any infinite set of sets. But it turns out that the axiom of choice is independent of the other axioms of set theory! The other axioms of standard set theory can neither prove nor contradict it. This is a stunning result. As mathematicians tried to wrap their heads around this mind-blowing axiom, they ended up with all kinds of profound results. For example, it is logically equivalent to some unexpected statements in set theory.

You can use the Wikipedia article about Axiom of choice as a starting point to explore. Let me know your thoughts.

Saturday, December 10, 2005

My Website

I am working on a website. I can't reveal too much because I don't want someone else to implement the idea first, but here is some preliminary information:

It is a database site.

It is for college students only. I am trying to establish the kind of college community feeling that you see on Facebook. However, it is not a replacement for Facebook.

It is a site for college students to spend a lot of time on.

It could be categorized as a dating site, but that's not quite what it is.

It is very complex. It is more complex than, say, Match.com.

I will publish more details as I get farther along. The idea itself has been brainstormed pretty thoroughly, but I don't want to give it all away just yet.

I've never made a complex website before. This is a particularly huge programming challenge, and I have only begun to learn ASP.NET 2.0, which I will use to do it. It will take months. Luckily, last week was first-quarter finals week, and now I've got almost a month of vacation.

Statistics Joke

Two statisticians were travelling in an airplane from LA to New York. About an hour into the flight, the pilot announced that they had lost an engine, but don't worry, there are three left. However, instead of 5 hours it would take 7 hours to get to New York.

A little later, he announced that a second engine failed, and they still had two left, but it would take 10 hours to get to New York.

Somewhat later, the pilot again came on the intercom and announced that a third engine had died. Never fear, he announced, because the plane could fly on a single engine. However, it would now take 18 hours to get to new York.

At this point, one statistician turned to the other and said, "Gee, I hope we don't lose that last engine, or we'll be up here forever!"

Via http://www.xs4all.nl/~jcdverha/scijokes/1_2.html

Microsoft vs. Apple


vs.


I don't have a strong opinion about either company, but this is obvious. You can see that Steve Jobs is giving a masterful demo of the iPod Video's simple remote control, while I don't even know what Bill Gates is saying here about "The Microsoft 'Live' Platform".

Incidentally, I recently heard PowerPoint presentations being discussed in an NPR interview. It is interesting because people make all kinds of presentations with PowerPoint, and you see people reading off the slides to varying degrees. The expert's opinion I heard is that it's best to use a PowerPoint presentation the way a television news program uses its graphics. It should be a simple visual with a handful of words about the central message. Most people write way too many words on their slides, and it is annoying for the audience to try to read them all between the presenter's spoken sentences.

Sources:
http://www.flickr.com/photos/niallkennedy/58697220/ - Microsoft image
http://www.flickr.com/photos/olebra/52140270/ - Apple image

SadTech and Lines

A technology is considered "sad" if stories about it will make future generations of people laugh at us. My favorite author writes a blog called SadTech where he rants about how the technology we're stuck with today leads to unnecessary discomfort, tackling subjects from automobiles to obesity.

I thought of a SadTech topic myself: lines. Think about how sad our typical modern implementation of the line is:



The place where the line forms is unable to deal with people as quickly as they arrive. This fact is sad in itself.

You often don't know how long of a wait to expect until you arrive at the location and it's impractical to leave and come back. With each visit you are gambling an unknown amount of your time.

You actually have to stand in a physical line, slowly inching forward. This can become tiring and uncomfortable.

During the wait, you are neither being productive nor being entertained.

The purpose of the line is to ensure that people receive service in the order that they arrive. But this is just a concept, and it's ridiculous that people are still being forced to act it out by arranging their bodies in a physical line. It's about time for cell phones to support a system of monitoring your place in line for you.

Friday, December 09, 2005

My Favorite Author

Marshall Brain is my favorite author.

He is best known as the creator of HowStuffWorks, which is a great website, so that by itself makes him pretty awesome. But Marshall Brain has also written over a dozen blogs, essays, and even books, all of which are available online and for free. Seriously, the guy probably sits down at his computer and writes for a few hours each day.

What he comes up with is fascinating. These are some of my favorite pages:

Robotic Nation - A mind-blowing, but probably accurate vision of robots in the next few decades. Also, why a robot will probably take your job and cut your career short, even if your job is white-collar.

The Day You Discard Your Body - Yes, there will be a day in the next few decades when you literally remove your brain from your physical body, store it in a vault, and live life in the virtual world. No kidding.

Why Does God Hate Amputees? - Who is God, and why does he hate amputees?

The writing style is totally unique. Marshall Brain talks to you directly, asking you questions, joking with you, but also challenging you. I'm not sure how he always does it, but he is brilliant at writing clear explanations of complex concepts.

I usually don't declare a "favorite" anything, but I am making an exception. If Marshall Brain writes something, I will read it. It's interesting that my entire picture of him comes from his own writings (well, also from his picture). But I don't just admire his works, I admire him as a person.

The First Post

This blog is about all the things I find myself thinking about that perhaps would be interesting to others. Welcome.