“[that life expectancy in Canada is higher than in the USA] is to be expected, Peter, because we have 10 times as many people as you do. That translates to 10 times as many accidents, crimes, down the line.” Bill O’Reilly
Recent Comments
non-theory
theory
Archives
- May 2013
- April 2013
- March 2013
- November 2012
- August 2012
- July 2012
- June 2012
- May 2012
- February 2012
- January 2012
- December 2011
- November 2011
- September 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
- January 2007
- December 2006
- November 2006
- October 2006
- September 2006
- August 2006
- July 2006
- June 2006
- May 2006
- April 2006
- March 2006
a
Tags
Additive Combinatorics
Apple
Avi Wigderson
CCA security
circuit lower bounds
Conceptual contributions
cryptography
CS254 2010
eigenvalues
Expanders
Fields Medal
FOCS 2006
FOCS 2010
Hard-Core Sets
ICM 2006
Integrality gap
Leonid Levin
linear programming
Luby-Rackoff
maximum flow
Metric embeddings
Oded Goldreich
Proposition 8
pseudorandom function
Pseudorandomness
pseudorandom permutation
public-key encryption
quadratic residue
Random Oracle Model
Regularity Lemma
RSA
SAT
signature schemes
sparsest cut
Spectral partitioning
STOC and FOCS
Szemeredi Theorem
Tamar Ziegler
Terence Tao
things that are excellent
Tim Gowers
Turing Centennial
unique games
World Cup
Zero Knowledge

4 comments
Comments feed for this article
October 16, 2009 at 6:47 am
Glencora
Don’t get me started on all this health care bull ****. Yesterday I got my insurance manual. It’s 120 pages long. Oh? I’m sick? Just let me read through this epic to see how much it’s going to cost me.
I miss Canada. And yes, health care is objectively better in Canada. And, in the month that I have been back in the US, I have spent more time dealing with health care (signing up for plans, talking about plans, figuring out where I can see a doctor) than I have in my whole life in Canada. (And, I haven’t even been sick here.)
Please excuse my rant.
October 16, 2009 at 10:27 am
Kevin McCurley
There is no doubt that Bill O’Reilly is dumber than a block of concrete, and the statement is clearly wrong.
… well except for one small doubt of mine (not that it would validate Bill O’Reilly’s incredibly stupid argument, but that it raises a curious question in theory of social networks). In a society consisting of a single individual, there is no opportunity for crime by one person against another. In a society of two individuals, there is opportunity for crime by one individual against another. Therefore you would expect the crime rate to be higher in a population of two individuals than a society of one individual. The question is whether social network effects would cause a higher rate of crime as the society grows (or as the average degree of social interaction grows). The actual crime rate could be modeled as a function of many factors in a social network such as the distribution of physical vulnerability of individuals, the inequity in resources, or the global shortage of resources. The interesting question is how the expected crime rate might scale in a society as the number of individuals grows. As the population grows, it might put pressure on resources (which is probably why rats attack each other in the presence of food shortages – see http://www3.interscience.wiley.com/journal/112414892/abstract?CRETRY=1&SRETRY=0). Prisons also seem to have higher crime rates as the population increases, but that is probably because of close physical proximity.
It pains me to think that there might be a grain of truth to an argument by Bill O’Reilly, so I would prefer it if there is no scaling effect on the crime rate. On the other hand, I don’t think we need science to prove that Bill O’Reilly is an idiot.
October 16, 2009 at 10:55 pm
Dubi
Kevin, homicides in the US are about 0.7% of all deaths in the US every year (~18000 out of over 2.4 million), ranking 15th in the causes of death. For comparison’s sake, the number one cause of death, heart disease, causes over 600,000 deaths per year in the US alone.
Every year, a whopping 0.0062 percent of the population dies by homicide. Compare that with 0.67 percent of all babies born each year that die at birth (vs. about 0.5 percent in Canada – a very significant difference). A substantially larger portion of the difference in life expectancy is explained by infant mortality than is by homicide – if every one of those homicide victims was aged 10, it would make only 6 months worth of difference in the life expectancy of Americans. If those 0.17% of babies that die in the US but live in Canada had lived to be only 10 years old, that would’ve made up for those six months and then some.
So put your mind at rest – O’reilly’s a douche.
October 18, 2009 at 7:39 pm
Ville Hautamaki
Not talking about O’Reilly (I saw enough of him in TV last year, when I visited US).
But modeling crime in social networks is an interesting topic. Okay, sure Kevin is right,
increased population density has an effect in increasing crime rate. But how about,
regulating factors to it? I am a postdoc in Singapore right now, where we have
very high population density and low crime rate.
So let’s see, some hand waving here, individual i has some probability P_{ij} to
commit crime to a other individual j (over a social network, I assume we are not talking about complete graph). But this probability is regulated by a some other
external factors, like fear of getting cought, punishment etc.
You guys know any models dealing with this kind of situations?