Have you seen the light?

As animals, and especially visual animals at that, we have a particular experience of the light.  For us it is illumination, information about our surroundings.  For that purpose moonlight or even starlight will do.  And for tens of millions of years, that’s all we ever saw.  Somehow a few of us made it through the Permian extinction, and into the Triassic, but the ascendancy of the dinosaurs eventually forced us into the darkness of the night.  Our world became dim, and our eyes went colorblind.  Most mammals today see only two colors, but a few of us have re-evolved a third photoreceptor.  Three colors is still inferior to the four or five or six seen by many near-surface fish, birds, reptiles, insects, and other arthropods.  The stomatopods are almost biological spectroscopic imaging systems, with 12 color channels in each of their independently movable trinocular eyes.  We are lesser than the eyes that never left the light.  They stole the colors from us and made us hide within the night.  They kept the sun for themselves, not knowing that our small and furtive ways, our burning endothermy and our fur would see us through the aftermath of the KT impact.

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The Evolution of Cooperation by Robert Axelrod

The Evolution of Cooperation was, somewhat surprisingly, a story about math. Math that actually describes a lot of things in life. It’s the story of The Prisoner’s Dilemma.  What makes The Prisoner’s Dilemma interesting, is that the players in the game have conflicting incentives.  You can be rewarded either for cooperating, or for defecting.  Unlike most things we think of as “games”, it is not zero-sum: both players can win, and both players can lose.  Too often it seems like this possibility is forgotten.  The dilemma goes like this.

Two suspected accomplices are taken into custody for a crime and separately interrogated.  Each is pressured to rat out the other.  If neither of them squeals (they cooperate) then both of them get short jail terms.  If both of them rat, they both get fairly long terms.  If only one of them gives in, and the other remains silent, then the fink gets off, and the honorable thief goes away for a long long time.

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Shared Links for Mar 11th

  • The Missing $1,000,000 Tax Bracket – There's a fair amount of debate over what the "top marginal tax rate" should be, but it's infrequently noted that there's actually vastly more variation in the income threshold at which that rate becomes applicable. In inflation adjusted dollars, it's fluctuated between around $80,000 (Regan) and $80,000,000 (!) during the Depression. Ignoring this while debating the highest income tax rate is kind of absurd. (tagged: usa tax policy )
  • True Traffic Tales – Ah, bikes and cars living harmoniously together. (tagged: cartoon bicycle transportation )
  • Evangelical Climate Initiative – A Christian take on climate change, given its reality, what is the appropriate response for a conscientious person of faith? From my point of view as an atheist, it's not so important what other peoples' motivations are for taking action, as long as they take action. I'm curious how this has been received by the evangelical movement. (tagged: religion climate science christian green )
  • Sailfish Cooperating to Hunt Sardines – I had no idea sailfish were so colorful (and changeable), let alone this cooperative. Glad National Geographic still exists, even if our maps no longer have "Terra Incognita" on them (tagged: fish cooperation nature )
  • Communicating the Second Premise: Whether Obama or Bush, Values Drive Science Policy Decisions – A good look at the division between science facts/findings and science policy in the context of stem cell research and Bush's vs. Obama's take on it. Facts alone do not imply any "shoulds". We need values to tell us what's right or wrong. Sometimes those values are so obvious we don't even think about them, and sometimes they're not, especially when new and poorly understood technology is involved. (tagged: science policy obama bush stemcells biology )

Shared Links for Mar 9th

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Shared Links for Mar 2nd

Shared Links for Feb 28th

Shared Links for Feb 23rd

  • Goodbye to the Age of Newspapers – I just don't buy the lament of the newspapermen. If the papers were subsidizing the collection of "real" news with ads, how sure are we that people ever wanted news? Why exactly should we believe that there ever was some public interest at heart in journalism? I'd say it's just as likely that the fragmentation of digital media, and the trend toward tabloid fluff, is an indication that nobody (or at least, not enough people) really cared about the "serious" news in the first place. Disaggregated, opinionated, (truly) non-profit journalism will certainly be different than the muckrakers, or Big Media, but it's unclear to me that it will be worse in any way for government transparency, or democratic interchange. (tagged: technology media government transparency democracy )
  • The Crisis of Credit Visualized – Another great popularly accessible explanation of how we got into this mess, this time in cartoon form. Too bad there weren't any regulators in the story! (tagged: economy crisis financial animation mortgage subprime )
  • Bank insolvency: tips & tricks – Never, ever, feed a zombie bank. The great thing (or, one great thing) about blogs is that you can talk about serious and technical issues, using analogies to zombies. Try that in the Economist, or the WSJ. (tagged: economics finance stimulus bailout fed banks zombie )
  • Ann Druyan Talks About Science, Religion, Wonder, Awe, and Carl Sagan – Musings from Ann Druyan (Carl Sagan's partner) on how we might apply the wonder of the cosmos, as revealed by science, toward the creation of naturalist spiritual communities. (tagged: science religion sagan atheism naturalism cosmos spirituality )
  • There's no reason for non-recourse – Options are valuable. That's why we have markets for them. The trillion dollars worth of non-recourse loans (cf pawnbroker) which the Fed is apparently about to offer up to the finance industry, will, because they are non-recourse, lead to a misvaluation of the assets being bought, even if they're being bought by private entities, because the penalty for non-repayment is simply forfeiting the asset (which might very well end up being worthless). The Fed is acting like a pawn shop, but a dumb one: what pawn shop in its right mind would let you exchange your cubic zirconia for half the value of a diamond? (tagged: finance economics crisis bailout fed geithner bernanke )

Shared Links for Feb 12th

Francis Collins has no evidence for God

I can’t say that I’m surprised, but what Francis Collins presented in his talk last night at Caltech as constituting evidence for God’s existence was utterly unconvincing.  However, what he said and the questions which followed were vastly better framed, less offensive, and in some important respects much closer to the truth than the talk that Richard Dawkins gave at Caltech in 2006 when he was touring for his book The God Delusion (which was ultimately so unpleasant and ill conceived that even I, an atheist who basically agrees with Dawkins’ criticisms of religion, am unable to recommend it).  You can watch or listen to an earlier version of Collins’ talk on the Veritas Forum website.  It’s in support of his own book, The Language of God: A Scientist Presents Evidence for Belief.

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