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January 1, 1992

Science and Marriage1

The Inadequacy of Inductivism and Falsificationism

In India, marriages are often made after careful and painstaking observation and collection of data about the prospective bride and the groom. They (the parents, mostly) conduct all manners of enquiries, often extending over several months, concerning their families, hereditary traits, lineage, affluence, age, astrological fitness for the purpose, talents, personal interests, educational qualifications, habits, complexion, physical features, and even such things as whether the prospective bride or groom drinks coffee in bed, which is generally considered a bad habit. When all the data has thus been collected by either side, they sit down and make a decision as to whether the marriage can be arranged successfully. If it can, which is the case if one side can afford the dowry the other asks, the marriage is made and once made cannot be broken. Such a marriage is infallible, even though the couple may prove to be incompatible with each other after marriage. It's just too bad if the husband2 later develops a severe distaste for his in-laws whom his wife insists on having visit them every weekend. He'll just have to live with it. The sacred bond of union is inviolable and cannot be broken at any cost - Such is the typical view in American media of an Indian marriage3. Substitute "Scientific Theory" for "Marriage" and you have the Inductivist account of Science.

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January 1, 1995

Karma and Rebirth - Reconciliation with Advaita

Sankara's monism is a form of Hindu philosophy. In fact, it is one of the most popular ones. It emerges in the Hindu Scriptures and was developed by the Hindu philosopher and theologian Sankara in the 8th century. Sankara, it has been argued, made the theory cogent and intelligible, consistent with other scriptural claims and even used it as a tool in an attempt to try and convert recalcitrant Buddhists.

Briefly, Sankara's monism, or Advaita as it is called, says that there is no distinction between mind and body, and besides, that there is only one mind in the universe. This non-dual mind is identified with our Self, which is our thinking soul, and also with god. Everything else, including your and my individuality, is an illusion, called Maya, in this mind due to its intrinsic ignorance about the nature of things. There need be no cause for ignorance, Sankara argues, as it occurs naturally. Only wisdom needs to be explained. Thus there is no need to posit any further entities to back this ontological thesis.

Now, post-vedic Hindu scriptures contain ample references also to the doctrine of karmic rebirth.1 That is, every being is caught in an unending cycle of births and deaths. As you sow, so you shall reap. Thus, our "sins"2 will eventually catch up with us causing us (our souls) to be reborn in our next lives and eventually (after an infinite time) experience exactly what it is we did to other creatures in this and our previous lives. This has been proposed by some as the Hindu solution to the problem of evil. A very simplistic interpretation of this doctrine (folk-rendition) says that if you kill a butterfly in this life, then you will be reborn as a butterfly in one of your future lives during which this butterfly will be born as a human who will kill you, thus evening things out in the final reckoning.

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Two-Way Street

As a young boy in India walking to his school, I used to wonder how drivers could tell if they were on a one-way street. It was ok for vehicles trying to enter the street from the wrong end --- A no-entry sign will prevent them from getting in. But that is not enough, of course. Vehicles coming in from the other side need to be told that they are entering a one-way street too. What if a vehicle on a one-way street suddenly wanted to turn around and go back? But in the city where I come from, the transport department must have wisely decided to save money by relying on people's observational skills. There were no signs at the entrances to one-way streets. There were only ``No-entry'' signs at their exits. I guess it makes sense because the traffic was usually so dense that you can tell one-way streets by just looking at them. There was no chance of traffic ever making it an inch ahead in the wrong direction. However, there is a fine line between impossible and illegal and that is precisely what I set out to exploit. I decided to expose the loophole in the legal system by showing that I couldn't be prosecuted by law although I had done something obviously illegal.

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January 1, 1996

What is Advaita?

In Mind, this should be noted, there is no plurality whatsoever. There is just one - Brih.Up.

"You philosophers are a bunch of fools" said the theologian. "You are like blind men in a dark room looking for a black cat that isn't there!" "That may be true" replied the philosopher, "but you theologians would have found it."


Advaita is a school of Hindu philosophy. The greatest proponent of Advaita in Hindu history can be said to be the South Indian philosopher Sankara, who lived in the 8th century. Interestingly, Sankara had employed much the same method as Descartes did in the 18th century to argue that the mind is different from its body. However, the implications he drew from his argument were quite different to those of Descartes.

Descartes used the Leibniz identity princple to argue that Mind and Body (brain) are distinct entities, since at least one of them possesses a property that the other doesn't. That is, the body possesses the property that its existence can be doubted, but the Mind doesn't - Cogito ergo sum (I think, therefore I am). The very act of doubting the existence of a Mind is a mental act which necessarily implies the Mind's existence. Since the existence of the Mind is self-evident, but that of the body isn't, they must be distinct entities. Hence Cartesian dualism.

Sankara, on the other hand, had used this same argument, but went on to argue that since only the Mind's existence can be established without doubt, and not that of the body, one should rationally only consider the Mind as real. Properly, the body should be dismissed away as unsubstantiated (a product of illusion or Maya). In Sankara's terminology, the Mind is called the Atman which roughly translates to Self or Soul.

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January 1, 1998

Is Learning Unix Worth the Time?

First appeared in High Technology Careers, Vol 15(2w), p.26

It seems Ken Thompson, one of the people who wrote Unix, was asked what he thought of the date-rollover problem in Unix (In the year 2038, the Unix date value wraps around to 0). His reply was that he didn't care as he was going to be dead by then. A speaker at the UniForum NZ 97 conference at Rotorua quoted this anecdote. When I mentioned this to a friend, he said that this speaks a great deal for Unix since the questioner implicitly assumed that Unix was still going to be around in 2038. Well is it? Is it worthwhile learning Unix skills and still be employable in the decades to come?

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May 1, 1999

The Troublesome Toilet Seat - Up or Down?

Why would someone start a serious study of something so silly? That's precisely what I thought until I noticed that this seems to be a real problem in many households, at least as evidenced by popular sitcoms on TV such as ABC's ``Home improvement'' and NBC's ``3rd rock from the Sun''. This is what ultimately stimulated my interest in this seemingly trivial issue.

Click here if you just want to run the computer simulation.

1. Introduction

In spite of Faye's repeated insistence that Mike leave the toilet seat down, Mike made the unfortunate mistake of accidentally leaving it up one day, only to suffer its dire consequences. Faye threw such a fit that Mike had to sleep on the couch almost that whole week until he made it up to her.
Most of us who read the above passage are probably sympathetic toward Mike, but strangely, not as harsh in our judgment of Faye as we should be. Consider instead the following situation:
In spite of Mary's repeated insistence that Peter bring her a bunch of red roses every day on his way home from work, Peter made the unfortunate mistake of forgetting to do so one day, only to suffer its dire consequences. Mary threw such a fit that Peter had to sleep on the couch almost that whole week, until he made it up to her.

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July 7, 1999

The Clever Widows of Fornicalia and the Stobon Oracle

July 7, 1999: There is a more recent version of this document with a Prolog implementation of the proof by Ray Kemp. It is available in Postscript format (140K) and can be downloaded from here.

In a certain village on the remote plains of Fornicalia there exist some men who are having affairs with the wives of other men. Now there is a gruesome custom in this village which requires a woman to kill her husband the morning after she discovers that he is having an affair with another woman. It also happens that every woman knows whether every other man is having an affair or not except her own husband.1 So life in this village goes on peacefully since no woman can know for sure that her own husband is cheating on her. Unfortunately, an Oracle from the pure and untainted shores of distant Stobon visits the village one day and proclaims that at least one man in this village is having an affair. What happens after this?

Readers are urged to think of a solution themselves before proceeding further. We first present the solution and its proof and finally go on to discuss the information theoretic aspects of this remarkable problem.2 A similar treatment of this and some other aspects of the puzzle can also be found in Moses et al. (1986) and Halpern and Moses (1990), both of which also cite other sources where further discussion of the topic can be found.

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November 18, 2006

The CPA Nube Lube Tube

Grease to ease the transition of newbies into the fascinating world of Cost-Per-Action (CPA) advertising

First appeared in San Jose Mercury News Forums, Nov 18, 2006.

Consider the following ad, the likes of which we are all only too used to routing promptly into our spam buckets.

"The sex of your baby predicted CHEEP! Guaranteed Results. 150% REFUND for wrong predictions"

There you have it - a simple and sweet business plan if ever there was one. But people who ponder can promptly peer past its imposturous garb. This is just gambling in disguise. Suppose the service costs $1.00 and a thousand naive couples paid for it. On average, five hundred of them will receive a refund of $1.50; the rest will presumably be happy to have been told the sex of their baby. Despite the refunds, however, the service provider is $250 better off than she was before, and for no more effort than flipping a coin for each customer. Immediately, one can tell that the scheme is a rip-off, aimed at defrauding innocent parents-to-be of precious baby-dollars.

To the uninitiated, that is exactly how CPA advertising is being framed by ad-networks steeped in profiting from traditional methods: "Give us your ads. We'll show them. You only pay for ads that result in a sale, but not a cent on the rest." On the surface, yes; this does look like a scam. But fortunately, this is not what CPA is about. In fact, CPA represents the exact opposite. CPA ad-networks don't just flip a coin to show an ad. Considerable effort and investment go into determining where each ad is most likely to appeal, and, of course, web real-estate on which to show ads does not come free either. A CPA network will actually "lose" money if you don't make it and therefore it is in their best interest to make sure you are successful.

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July 29, 2007

A Metaphorical Essay - Google News, Air, and TCP/IP

If you could see the individual molecules of air in a perfectly still room, you would see that the molecules are anything but still. They are moving in all directions, apparently randomly. Each has its own spin, and its own story to tell. Yet the room itself, made up of millions of these molecules, has the picture of perfect calmness as though nothing in it is even stirring. In the calm of this room lies buried the solution to the most pressing problem in objective journalism.

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August 3, 2007

Communing with Carrots

Last weekend, as I was munching away on a sweet home grown carrot from our own backyard, I let my mind wander with the wind and ponder pointless profoundities. An interesting, but totally useless statistical question occurred to me.

That we are all ultimately made of dust from the distant stars is indisputable. But what, I pondered, might be the odds that an atom of carbon in my crunchy carrot was the same atom in a molecule of CO2 I had exhaled earlier?

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About Essays

This page contains an archive of all entries posted to aBlog in the Essays category. They are listed from oldest to newest.

I discovered that some of my undergrad A+ essays are being peddled online by some sites selling them to plagiarizers. I don't have the time to go after them and I don't care too much. But I might as well link to them from here (as and when I export each from Word-perfect), so it's easier for instructors, with Google's help, to detect when their students cheat.

Chapters is the previous category.

Fiction is the next category.

Many more can be found on the main index page or by looking through the archives.

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