Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Tuesday, June 24, 2008

What do you have against science, Wired?

I thought we spoke about this before, but you persist with the silliness: "The End of Theory: The Data Deluge Makes the Scientific Method Obsolete"
This is a world where massive amounts of data and applied mathematics replace every other tool that might be brought to bear. Out with every theory of human behavior, from linguistics to sociology. Forget taxonomy, ontology, and psychology. Who knows why people do what they do? The point is they do it, and we can track and measure it with unprecedented fidelity. With enough data, the numbers speak for themselves.

The big target here isn't advertising, though. It's science. The scientific method is built around testable hypotheses. These models, for the most part, are systems visualized in the minds of scientists. The models are then tested, and experiments confirm or falsify theoretical models of how the world works. This is the way science has worked for hundreds of years.

Scientists are trained to recognize that correlation is not causation, that no conclusions should be drawn simply on the basis of correlation between X and Y (it could just be a coincidence). Instead, you must understand the underlying mechanisms that connect the two. Once you have a model, you can connect the data sets with confidence. Data without a model is just noise.

But faced with massive data, this approach to science — hypothesize, model, test — is becoming obsolete.

...

There is now a better way. Petabytes allow us to say: "Correlation is enough." We can stop looking for models. We can analyze the data without hypotheses about what it might show. We can throw the numbers into the biggest computing clusters the world has ever seen and let statistical algorithms find patterns where science cannot.

*sigh*

No. No, it's not. Data without a model *is* just noise. The value of a model is that you can make predictions with it. You can't do that with just data points, you have to connect them in some way. Even if you're only making inferrences from correlation, you're still creating a model. The hypothesis is the model. From it you make predictions, which you test. This is often how things start in a proper scientific investigation. Someone notices an interesting correlation and studies it further. You're just skipping the testing phase, relying on lots of correlation being sufficient instead.

Why do you refuse to learn how science works, Wired magazine? Is it because you fear that too much critical thinking will expose the singularity as a pipe-dream, that you won't get nerd-raptured away?

Come on. We can work through this together, if you'd only tell me why.

Friday, March 7, 2008

What we need more of is science.

What we need less of is people who do not understand how science works.

"The internet is changing the scientific method

If all other fields can go 2.0, incorporating collaboration and social networking, it's about time that science does too.

In the bellwether journal Science this week, a computer scientist argues that many modern problems are resistant to traditional scientific inquiry.

"There is an enormous success story for Science 1.0," Ben Shneiderman, a University of Maryland computer science professor said. "But the Internet is changing both the methods we use and the things we need to study. The challenge for the next 400 years is to understand how trust and empathy work."

In an editorial titled, "Science 2.0," Shneiderman argues that studying the interactions between people will be more important than studying the interactions between particles in bringing scientific solutions to big problems like disaster response, health care and energy sustainability.


Listen, here's how the scientific method works: you gather data, formulate a hypothesis, make predictions from said hypothesis and conduct experiments to verify your predictions. Correct hypothesis if needed, and iterate until solid. That's it! If you fuck with that you're no longer doing science and should be tarred, feathered, whipped and judged eligible to only recieve medical treatment from alternative medicine proponents.

Of course, what Shneiderman seems talking about is changing fields of of study, increasing collaboration and all that jazz, but changing some of the methods scientists use is different from changing the scientific method. This is a distinction the people at wired are either too ignorant to grasp, or too concerned with a sexy headline to let it bother them. Either way, they should get a good clout on the head and be sent to bed without supper.

Monday, December 24, 2007

Holy Shit



Found via the clever Kung Fu Monkey. I want this in my first person games *now*.

Monday, September 24, 2007

What we need more of is science

Chernobyl fungus feeds on radiation:
Casadevall and his co-researchers then set about performing a variety of tests using several different fungi. Two types - one that was induced to make melanin (Crytococcus neoformans) and another that naturally contains it (Wangiella dermatitidis) - were exposed to levels of ionizing radiation approximately 500 times higher than background levels. Both of these melanin-containing species grew significantly faster than when exposed to standard background radiation.

"Just as the pigment chlorophyll converts sunlight into chemical energy that allows green plants to live and grow, our research suggests that melanin can use a different portion of the electromagnetic spectrum - ionizing radiation - to benefit the fungi containing it," said co-researcher Ekaterina Dadachova.

Oh my god! Stan Lee was right!

US Army develops pain rays:

When turned on, it emits an invisible, focused beam of radiation - similar to the microwaves in a domestic cooker - that are tuned to a precise frequency to stimulate human nerve endings.

It can throw a wave of agony nearly half a mile.

Because the beam penetrates skin only to a depth of 1/64th of an inch, it cannot, says Raytheon, cause visible, permanent injury.

But anyone in the beam's path will feel, over their entire body, the agonising sensation I've just felt on my fingertip. The prospect doesn't bear thinking about.

"I have been in front of the full-sized system and, believe me, you just run. You don't have time to think about it - you just run," says George Svitak, a Raytheon executive.

Silent Guardian is supposed to be the 21st century equivalent of tear gas or water cannon - a way of getting crowds to disperse quickly and with minimum harm. Its potential is obvious.

Diana Mail though, so grains of salt, etc.

Tuesday, July 17, 2007

This one's for Vicky...

...as well as all other rampant arachnophobes out there.
IT'S every arachnophobe's worst nightmare: millions of spiders on the move, blanketing everything in cobwebs.

The Gippsland flooding has triggered a spider population explosion of up to 30 species, which have taken to the air in the search for new homes.
Yum. Just look at that.