Best Talk of Pop!Tech '08

The reason I like this talk so much (besides that it’s well-presented) is that it introduces us to the idea of invisible etiology.  Such a powerful concept, one that I feel has the power to help us solve so many mysteries, once we take it seriously.

Something that I’ve been thinking about lately: does homelessness have an invisible etiology (or etiologies), and if so, what is it?…

Behavior and Emotions as Virus

We’ve talked about obesity as a virus and violence as a virus, both well-supported by the research.  Now there’s happiness as a virus.  Hardly a surprise, but I guess for new paradigms to become the accepted basis for organizing scientific thinking, they first have to become banal.  So let’s bring it on, what’s the next human behavior or emotion that will be featured in a “surprising”study showing a viral etiology?

hat tip: Daniel Horowitz

Invisible Etiology

One of the most poignant moments of this year’s Pop!Tech for me — which, BTW had many — was Gary Slutkin’s talk on the idea of violence being a virus.  You may have heard about his work in stopping violence in Chicago in a NY Times Magazine cover article earlier this year.  The premise is simple: if you throw out what you think you know about violence and just look at the etiology of how it manifests in the world, you find incredible similarities to the etiology of microbial viruses.  This includes not only how it spreads from person to person, but also the larger epidemiological patterns, and importantly, how it can be stopped via interventions which logically follow from the hypothesis that violence is a virus.  Not that violence is caused by those invisible critters we call viruses, but rather that violence itself is a virus.…

Cancer Research Surprises

Many people would admit to not understanding cancer well, but fewer people would admit to not understanding evolution well.  Here are some challenges to our understanding of both.

Starvation may help cancer treatment. “As little as 48 hours of starvation afforded mice injected with brain cancer cells the ability to endure and benefit from extremely high doses of chemotherapy that non-starved mice could not survive.”

Seeing Sigmoids

One of the most basic but misleading heuristics that the human mind uses is that of linearity. If we see a progression (say 0, 1, 2), our first instinct is that the next step follows linearly (namely 3). But there is no a priori reason to prefer the linear interpretation to any other, say quadratic (which would suggest the next step in the sequence is 4). For whatever reason – probably due to the relative simplicity of linearity – our brains seem wired to prefer linear explanations to non-linear.…

Is Obesity Contagious?

Science News reports that a 2005 study of obese and normal-weighted people found that “30% of the obese group showed signs of previous adenovirus-36 infection, while only 11 percent of the lean group did”. Recent research showed that the virus induces long-term changes in how stem cells develop, causing some that were slated to form bone cells to turn into fat cells instead. Researchers are quick to point out that you shouldn’t avoid fat people for fear of infection because the infectious phase only lasts a few weeks, and would have ended long before obesity set in.…

Try This Experiment

For one full day, whenever you are in physical proximity to another person, be they friend or stranger, look them in the eyes, hold their gaze and smile.…