Studies show that texting while driving is dangerous

According to the NYT, studies have shown that texting while driving is dangerous because those who text take their eyes off the road for extended periods while reading or sending a text. Hmmm. Why did it take a study to come to this conclusion? Why not simply follow this logic:

A) You need to take your eyes off the road to read or send texts. B) This is dangerous.
We certainly don't need studies to say equally obvious things, such that it is dangerous to drive while
A)watching Youtubes on your smartphone, B) eating corn on the cob; C) reading novels on your Kindle; or D) playing the trumpet.
An easy test for me is to ask whether you would mind riding on a public bus on which the bus driver was both texting and driving. I'm fully in agreement that no one should be texting while driving--I'm glad that the issue is getting some attention.

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Russ Feingold seeks Afghanistan timetable

Russ Feingold has published an article in the Wall Street Journal calling for a flexible time line to bring home the U.S. troops in Afghanistan. Here's an excerpt:

We need to start discussing a flexible timetable to bring our brave troops out of Afghanistan. Proposing a timetable doesn't mean giving up our ability to go after al Qaeda and the Taliban in Afghanistan. Far from it: We should continue a more focused military mission that includes targeted strikes on Taliban and al Qaeda leaders, and we should step up our long-term civilian efforts to deal with the corruption in the Afghan government that has helped the Taliban to thrive. But we must recognize that our troop presence contributes to resentment in some quarters and hinders our ability to achieve our broader national security goals. Some may argue that if we leave now, the Taliban will expand its control over parts of Afghanistan and provide a wider safe haven for al Qaeda. But dedicating a disproportionate amount of our resources to the military occupation of one country is not the most effective way to combat the terrorist threat we face. Even if we invest billions more dollars annually for the next 10 years and sacrifice hundreds more American lives, we are unlikely to get a credible government capable of governing all Afghan territory.
I agree entirely. I'm not convinced that there is any widespread military mission remaining in Afghanistan. Why are we still there in great numbers? I agree that we should pull out most of our troops but monitor for real life threats to the U.S. I suspect that Obama is afraid to leave for fear of looking weak. That's not a good reason to keep thousands of troops anywhere.

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Is living in a city damaging your brain?

If we are to believe the results of a new study from Marc Berman, a psychologist at the University of Michigan, the answer is "yes". These finding come at an interesting crossroads-- for the first time ever, more humans live in cities than in rural settings. The findings argue that the brain becomes confused and tired as it is forced to respond to the massive amounts of stimulii that are present in cities. The brain is constantly searching its surroundings, trying to anticipate threats. Not only does one have to negotiate traffic and constantly re-assess the changing visual landscape, but this is often done while carrying on a conversation or mentally planning a route through the city. Quoting from Boston.com:

The reason such seemingly trivial mental tasks leave us depleted is that they exploit one of the crucial weak spots of the brain. A city is so overstuffed with stimuli that we need to constantly redirect our attention so that we aren't distracted by irrelevant things, like a flashing neon sign or the cellphone conversation of a nearby passenger on the bus. This sort of controlled perception -- we are telling the mind what to pay attention to -- takes energy and effort. The mind is like a powerful supercomputer, but the act of paying attention consumes much of its processing power.
Interestingly, the researchers found that just showing people a picture of an urban environment was enough to cause substantial impairment to the test subject's levels of attention and working memory. Similarly, a different study quoted in the article shows that even very small amounts of exposure to nature were enough to confer significant improvement on subjects' cognitive abilities and sense of well-being. Additionally, the research indicates that living in cities may also have a harmful effect on one's level of self-control.

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On the importance of disagreement

The beginning of thought is in disagreement - not only with others but also with ourselves. –Eric Hoffer Honest disagreement is often a good sign of progress. –Mohandas Gandhi Greetings all! I would like to introduce myself. My name is Brynn, and I'll be joining the fantastic stable of authors at Dangerous Intersection. I'm flattered that Erich asked me to be a part of what is being built here. Lots of very talented people are contributing their thoughts to the ongoing discussion generated on various topics, and I'm honored to be a part of that. I’ve been a regular reader of DI for about a year, and I’ve been impressed with the quality posts as well as the engaging discussion that often occurs in the comments following the post. One thing that is never shied away from is disagreement. Nor should disagreement be avoided. There is no party line here, there is no heresy. What is abundant is the type of quality discussion and debate that is the hallmark of a vigorous, open community.

Too often in contemporary American society, honest debate is stifled. Politicians have learned to speak in sound bites. Media commentators have learned to present insipid and truncated stories to a largely passive and apathetic audience. The constraints of time or column inches prevent a lengthy examination of any given issue. Talking points are adopted by the major parties’ respective constituencies as though they were absolute truth. The vehemence with which one holds an opinion has become a substitute for thoughtful reflection on the reasons why one holds an opinion.

This must change. The staggering array of challenges that face us demand a well-informed and engaged citizenry . . .

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Creative denial of mortality as an evolutionary adaptation?

The August 6, 2009 edition of Nature (available online only to subscribers) includes a fascinating letter by Ajit Varki, a Professor of Medicine and Cellular & Molecular Medicine at the University of California San Diego, La Jolla. Varki begins his letter by recognizing some of the unique features of human animals, such as theory of mind, "which enables inter-subjectivity." These impressive human cognitive abilities might have been positively selected by evolution "because of their benefits to interpersonal communication, cooperative reading, language and other critical human activities." Varki then describes his conversations with a geneticist named Danny Brower (now deceased), who was fascinated with the question of why theory of mind emerged only recently, despite millions of years of apparent opportunity. Brower offered Varki a tantalizing explanation for this delay:

[Brower] explained that with the full self-awareness and inter-subjectivity would also come awareness of death and mortality. Thus, far from being useful, the resulting overwhelming fear would be a dead end evolutionary barrier, curbing activities and cognitive functions necessary for survival and reproductive fitness. . . . in his view, the only way these properties could become positively selected was if they emerged simultaneously with neural mechanisms for denying mortality.
In other words, self-awareness is a double-edged sword that tends to kill off (through terror-induced paralysis) those who become too readily self-aware. Therefore, self-awareness evolved together with denial of death--Brower was suggesting that those who became too clearly self-aware would become incapacitated by something of which chimpanzees, dolphins and elephants remain blissfully ignorant: the fact that they will inevitably die. Image by Puroticorico at Flickr Varki suggests that Brower's idea would not only add to ongoing discussions of the origins of human uniqueness, but it could shed light on many puzzling aspects of human psychology and culture:
[I]t could also steer discussions of other uniquely human "universals," such as the ability to hold false beliefs, existential context, theories of afterlife, religiosity, severity of grieving, importance of death rituals, risk-taking behavior, panic attacks, suicide and martyrdom.
Perhaps we are simply incapable of viewing life "objectively," in that evolution has rigged us up with equipment that protects us by deluding us. It seems, then, that the co-evolution of delusion and awareness (if this is the case) dovetails quite well with Terror Management Theory (TMT), which I summarized in a post entitled "We are gods with anuses: another look at “terror management theory”:

The problem is that the evolution of our powerful ability to be conscious made us aware that we are mortal beings and that all of us are heading toward inevitable death. The “solution” is also offered by our highly developed cognitive abilities: we have developed the ability to wall off our cognitively toxic fear of death by “objectifying” our existences and living idealized lives free from fear of death.

Brower and Varki thus suggest that the ability of humans to be extraordinarily aware and curious is too dangerous to be dispensed by evolution in its pure form. Too much knowledge can might be too dangerous. To safely allow the continuation of the species, human awareness might need to be deluded and distorted in ways that account for some of the most baffling "cultural" aspects of what it means to be human. Image by Latvian at Flickr (creative commons) This approach sounds promising to me, though it also raises many other questions, such as this one: Why are some of us apparently immune from these delusions? Why are some of us much more able to disbelieve claims of gods and afterlives?

Continue ReadingCreative denial of mortality as an evolutionary adaptation?