Scientific Theory

Making sure to avoid any confusion about what "scientific theory" in context of evolution means, Richard Dawkins in The Greatest Show on Earth: The Evidence for Evolution wrote:

Evolution is a fact. Beyond reasonable doubt, beyond serious doubt, beyond sane, informed, intelligent doubt, beyond doubt evolution is a fact.

- Richard Dawkins


What I'm guessing he meant is: evolution did happen and it's still happening. This is proven and solid. Evolution also uses and incorporates other facts that support the conclusion that evolution did happen. In this sense, evolution is a scientific theory and it is supported by facts. And of course, it is true and should be universally accepted as the truth. Creationists would not agree with this, but I would say this doesn't really matter to educated people.

But still, a lot of people say things like "that's only a theory", "why should we base our lives on a theory?, etc when they're talking about evolution, for example. Yeah, like a belief in a sky-wizard is something to base your life on? But I digress - the point of this brief post is just to share a understanding about what scientific theory is.

First thing you'll notice about scientific theories is - there's really PLENTY of evidence for them. This very fact makes them different from what we usually mean when we say "Theory" in normal speech.

Triceratops mounted skeleton at Los Angeles Museum of Natural History, Los Angeles, United States of America, by Allie_Caulfield Derivative: User:MathKnight - File:LA-Triceratops mount-1.jpg (by Allie_Caulfield), CC BY-SA 3.0, Link

By using words such as "FACT", instead of "theory" Dawkins does not confuse people that might not be familiar with scientific meaning of the word "theory" and sometimes I wish other scientists would do the same when talking to the public, just to hammer the point more clearly. If you read Dawkins' quote again, there's no second thought about what he meant evolution is.

Let's not get tangled in words too much, but get right into the point about evolution and other well established scientific theories. So, what does actually mean when a scientist says something is a "scientific theory"?

Well, if you simply ask Wikipedia, it will tell you:

A scientific theory is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed, preferably using a written, pre-defined, protocol of observations and experiments. Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge.


Basically, when scientists use word "theory", they are talking about something completely different than what general public understands under "theory". When you use word "theory" in everyday speech, you actually mean "hypothesis" or "conjecture", something not tested or proven. When scientists use this word, they mean almost the same thing Dawkins meant: That what you and I mean by "fact" in normal speech.

To make an additional point, here are some scientific theories:

  • Special Relativity
  • General Relativity
  • Plate Tectonics
  • Evolution by natural selection
  • Information theory

All these theories have stood the test of time, fought-off challenges, have practical effects and are well-proven pieces of knowledge humanity has. So, don't be fooled by the words and cheap arguments that something is "only a theory". But do be critical and do try and see for yourself. A good rule of thumb would be: if there's evidence for something, it's on it's way to being true and if a idea doesn't have any evidence but requires "faith" or "trust" from you, or only focuses on trying to find flaws in competing idea, it most likely isn't true.

Request For Comments: Nutritionism

Currently thinking about "Nutritionism". I know almost nothing about it, but yet, it doesn't sound right to me. Just think about how many times have you heard "eat this and you will be healthy", only to hear that same advice declared bullshit in the very next study?

Image by Peggy Greb - This image was released by the Agricultural Research Service, the research agency of the United States Department of Agriculture, with the ID K11083-1.

It seems to me that Nutritionism as a science, if it indeed does belong into science has no solid foundations. Just think about it, when was the last time you heard for example that theory of gravity was debunked? Yet, I somehow have the impression this happens very often with Nutritionism.

Just look at the picture above. Wikipedia description reads:

Good sources of magnesium: bran muffins, pumpkin seeds, barley, buckwheat flour, low-fat vanilla yogurt, trail mix, halibut steaks, garbanzo beans, lima beans, soybeans, and spinach.

A reminder, "A NUTRIENT is either a chemical element or compound used in an organism's metabolism or physiology. A nutrient is essential to an organism if it cannot be produced by the organism and must be obtained from a food source."


So, I would say, when Nutritionism finds that a certain nutrient is good for you, it seems to me most of the Nutritionists will hurry to recommend foods which contain this, possibly at the expense of other foods that also contain this nutrient, but that also contain other useful things. And here my friends is where I see the potential for Nutritionists to be on the payroll of huge corporations, usually recommending products that these corporations are producing.

So, this seems to me a very dubious practice to judge foods only based on this. Because, by definition, food must contain a lot of beneficial, nutritional substances. Also, as it's discussed in this New York Times article - Most "nutritional science" involves studying one nutrient at a time, which at least to me seems shaky at best.

Yes, science when proven wrong acknowledges that mistake and goes back to the drawing board, But it seems to me that the only stable thing Nutritionism has is "eat fruits and vegetables". And not even this seems very stable. Actually, if you look at Wikipedia, it seems that Nutritionism is nothing more than the idea that the nutritional value of a food is the sum of all its individual nutrients.

Here's another article from The Scientist magazine. In this article author argues that Nutrition research uses "pseudoscientific measures". Well worth of reading.

As I said before, I know nothing about this. My instincts may be completely wrong and I hope that they are, because I believe in science and I do believe that science has a lot to say on a variety of topics, so why should be food be excluded? But I also believe in critical thinking and I believe in deciding for yourself.

This is my first attempt at doing so with regards to this field. I encourage you to do the same. If you have an opinion or a good (preferably layman-friendly) resource you recommend to read, feel free to leave a comment. Thanks for visiting!

Nasim Baglari is 29 years old - and banned from University in Iran

The title and the video say it all, really. The video is courtesy of Education is not a Crime.

Not that I support this Bahá'í religion, from what little I have read, it's more or less the same as other monotheistic religions (one creator, loving god, a source of all creation, blah blah ...) and I really don't care for any religion whatsoever. They're all false, and none of the religious stuff is true, is my belief.

But the point is that once again, religion is used as an excuse to discriminate against a group of people and this is wrong, plain and simple.

Bahá'ís continue to be persecuted in Islamic countries, as Islamic leaders do not recognize the Bahá'í Faith as an independent religion, but rather as apostasy from Islam. The most severe persecutions have occurred in Iran, where over 200 Bahá'ís were executed between 1978 and 1998, and in Egypt.

The rights of Bahá'ís have been restricted to greater or lesser extents in numerous other countries, including Afghanistan, Indonesia, Iraq, Morocco, and several countries in sub-Saharan Africa.

- Wikipedia

To deny somebody an education based on an interpretation of a book written thousands of years ago is simply appalling. To deny an education is a mild consequence because the penalty for apostasy from Islam is Death.

The bad thing is, this is just one example of this religion and Islam. People are still discriminated against based on their beliefs (or lack of beliefs) and every case like this should get as much publicity as possible, because every time somebody is discriminated against, we all lose. Go and spread the word. Go.

Few Facebook pages to like

We mostly use Facebook to get in touch with our friends, colleagues and family and in this regard we can say that Facebook can be very very helpful. Also, it's fairly low-risk for a woman to tell how to find her on Facebook, instead of giving the phone number. And ... that's about the limit of Facebook usefulness. Or is it?

Below is a list of few pages that I find interesting and "like-worthy".

NASA - National Aeronautics and Space Administration

Bill Nye The Science Guy

Discovery News


Look up from your phone and see that there are problems in the World

Sometimes I feel the world really needs a reminder that it has problems, so I'm going to spell out a few of them here. Generally it helps if you have problems spelled out, as humans tend to forget what things are important and just focus on the newest, shiniest phones and apps. Even as a developer, I must admit that apps are not going to change the world. Not really. Not in any REALLY, I mean REALLY important way.

OK, this was a gross generalization, as our precious phones and apps all help us to lead better and more comfortable lives in some way. You can connect with your long-lost friends. You can send messages to people more cheaply. Of course, sometimes these wonders of technology will save somebody's life. This is all great. But I sometimes feel that humanity in general has lost sight of the fact that there are REAL, bigger problems in the world.

1. Water Crisis

Water crisis or water scarcity means that there's a huge amount of people (even as high as 2 billion) that don't have access to clean water. There's a huge amount of people that don't have enough for their daily needs. "One in five people in the developing world lacks access to sufficient clean water (a suggested minimum of 20 litres/day)" (source - Food and Agriculture Organization of the United Nations).

Taken by fir0002 | Canon 20D + Tamron 28-75mm f/2.8 - Own work, GFDL 1.2,

Projections of population growth predict that by 2024 world population will reach 8 billion and 9 billion by 2040. (wikipedia). Humanity must work hard to ensure that there will be enough clean water for everyone.

Currently, there doesn't seem to be a global scarcity as such, but there are regions that are very short on water. So, basically, humanity is currently simply unable to govern properly all the water resources on this planet. For example, one in five people in "developing world" don't have access to enough clean water, while citizens of Europe and US have access to more than necessary.


The Bechdel Movie Test

There's this thing called The Bechdel Movie Test.

It's a very simple way to gauge the presence and influence of female characters in movies. Or to be more accurate, determine if a certain movie test has even a minimum presence of any meaningful female characters.

It's a very simple test that has only three simple rules for movies:

  1. It has to have at least two [named] women in it
  2. Who talk to each other
  3. About something besides a man

As you can see from the rules, this isn't a "feminism" test. It's a basic gender presence test and it doesn't demand a lot from a movie. However, even this very, very simple test is hard for a movie to pass, as there's a staggering amount of movies where a woman is nothing more than a love interest or a object prize to be won by a main masculine hero character.

But, it may shock you to find out that only about half of all films meet these requirements, according to user-edited databases and the media industry press. (wikipedia)

Also, this is not the only statistic that is devastating to women in movies. According to a 2014 study by the Geena Davis Institute on Gender in Media, in 120 films made worldwide from 2010 to 2013, only 31% of named characters were female, and 23% of the films had a female protagonist or co-protagonist.

Image by Sandstein - Own work, based on en:Bechdel test, CC BY-SA 4.0,

To return to the point, 50% of all films don't pass this simple test.


Kindle or Real books?

I have one-word answer for you: BOTH! This is what I do. I just can't help it, but I really, really love both. It's really like asking: "Beauty or Brains"? Both, of course!

So, let's go through pluses of both real quick, just so that you can see why, if you care about reading, you should have both.

1. Kindle

  • Kindle is so practical and compact that you can carry it literally everywhere. It even fits in the back pocket of your jeans. You only need to be careful when sitting down. But who sits down, without something to read anyway? :)
  • You can take thousands of books with you, no matter where you go. If you try to take a trip and you want to bring more than one book along, be prepared to leave a lot of clothes behind. Or just put a Kindle in your pocket.
  • As it's not a "tablet", but it uses e-ink technology, battery lasts for like a week. There are just no battery problems, ever. You can charge it wherever there's a USB port available and a micro-USB cable handy.
  • You can read PDFs on it! Simply copy the PDF into the documents folder, and you can read them on Kindle.
  • It's easy on the eyes. Like reading from paper. Again, it's not a tablet. It's based on e-ink technology. It doesn't have this glow that phones and tablets have.
  • You can highlight and "take notes" without damaging the books.
  • It's actually EASIER to read on a Kindle than to read a "Real Book". This one was like a revelation to me and it's something I would have never guessed before. When you are holding a book, you almost always need to use both hands, as papers have the tendency to run away if you're not holding them. With Kindle, you can only use one hand to hold it and to turn the pages, and you have your other hand free .. for other stuff. Or simply to lean on it. However you wish.
  • Get the book instantly. Click and it's there. OK, this also might be a minus, as bookstores are really ... dare I say ... romantic places.
  • Books are lot less expensive in Kindle edition. There's a huge, huge amount of free ones, too. All the classics, you can get them all for free basically. This is also a huge point for me. You can buy a lot of good books in Kindle version for only a few euros.
  • Read at night time more easily. No getting up to turn off the light.