The logic of science-13: How ‘good sense’ emerges in science

(For other posts in this series, see here.)

The philosopher of science Pierre Duhem said in his book The Aim and Structure of Physical Theory (1906, translated by Philip P. Wiener, 1954) that despite the fact that there is no way to isolate any given theory from all other theories, scientists are saved from sterile discussions about which theory is best because the collective ‘good sense’ of the scientific community can arrive at verdicts based on the evidence, and these verdicts are widely accepted. In adjudicating the truth or falsity of theories this way, the community of scientists are like a panel of judges in a court case (or a panel of doctors dealing with a particularly baffling set of symptoms), weighing the evidence for and against before pronouncing a verdict, once again showing the similarities of scientific conclusions to legal verdicts. And like judges, we have to try to leave our personal preferences at the door, which, as Duhem pointed out, is not always easy to do.
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What to do about the salvation of non-Christians?

Jerry Coyne discusses some recent attempts to address a troubling problem for Christians: How do you treat those believers in other faiths who seem to be perfectly nice people or who existed in times and places that your brand of religion did not reach?

Consigning them to the fires of everlasting hell seems a tad unfair, no? But saying that all good people go to heaven removes the sense of being special in god’s eyes which is, after all, the main recruiting tool that religions have.

Coyne makes the point that all ‘solutions’ to this problem that tend to universalize salvation will appeal only to theologians and academics. Most religious believers will prefer to think that they are fortunate enough to believe in the one true god, and the rest will simply have to hope that their eventual fate is not too horrendous.

The idiotic Ames straw poll

I watched with some amazement the Ames straw poll. The process is truly bizarre and yet for some reason it was treated as some kind of major political event. A straw poll, as the name implies, is a quick way to see which way the wind is blowing at one particular instant, and it is absurd to use it for anything more. And yet, such a poll resulted in the elimination of Tim Pawlenty from the Republican race.

Just think about it. Less than 17,000 votes were cast. As of 2008, there were 206 million voting age citizens. So 0.008% of the voting age population, all located in a small part of the country and representing very narrow interests, denied the rest of the country the chance to decide if they thought Pawlenty would make a good president.

Let me make it clear that I am not holding a brief for Pawlenty. I did not like his politics and he showed that he was willing to pander to the nutty base of the party as enthusiastically as the rest. For all I know, he may have run an awful campaign in Ames. But he did not seem to be obviously insane and did serve as a governor of a major state for two terms and this should at least count for something. The point I want to make is that it is crazy to allow such a narrow segment of the population to have such a major voice in determining who should or should not be the president and allow them to summarily eliminate candidates who, at least on the basis of their resumes, deserve to be taken seriously.

In his fine book Plain, Honest Men: The Making of the American Constitution (2010), constitutional scholar Richard Beeman describes the extended discussions the Founding Fathers had during the summer of 1787 as they tried to figure out the best way to elect a president. The problem they faced was that the president had to represent the nation as a whole but the state of communications was so poor and travel so difficult that, apart from war hero George Washington, they feared that the public scattered across the thirteen states would not have the knowledge to vote for someone who was outside their region or state. They feared that a truly democratic election in which each citizen cast one vote directly for the president would result in each state’s voters choosing their ‘favorite son’ for president, leading to an inconclusive result. They were also somewhat contemptuous of the wisdom, integrity, and intelligence of ordinary citizens and feared that they could be easily manipulated into voting for self-seeking and unscrupulous but charismatic politicians.

Hence the Founding Fathers developed the complicated indirect voting system that we call the Electoral College, whereby the voters in each state would vote for Electors who would in turn vote for the president. The hope was that these Electors would be from among the best and the brightest people in the state and most knowledgeable about national affairs and thus would cast an informed vote. But even this safeguard was considered insufficient since they feared that the numbers of Electors from each state was so small (varying from three each from Rhode Island and Delaware to twelve from Virginia) that they could be too strongly influenced or manipulated or even bribed by ambitious state politicians to vote for them. Hence they put in an additional requirement that each Elector had to cast two votes, at least one of which should be for someone from outside their own state. The hope was that it was from the votes cast for an out-of-state candidate that a truly national figure would emerge.

But they added even more precautions. If as a result of this process, no single candidate emerged with a majority of votes in the Electoral College, then the House of Representatives would vote from among the top five candidates. In this final election, each state’s delegation would have just one vote. They hoped that this elaborate process would allow for the election of someone who could rise about the parochial interests of his home state and represent the interests of the new nation as a whole.

In April 1789 George Washington was elected the first president under this system, having received every one of the Electoral College votes cast. But of course, the main concern was not about Washington, who was always expected to be a shoo-in for the post, but to ensure that someone close to his stature would be elected once he left office.

But look what we have now. Unlike in 1787, we have rapid travel and almost instantaneous universal communication so that all voters everywhere have access to information about all the candidates. The difficult conditions that the founders designed their system to overcome no longer apply. And yet, rather than having a system that takes advantage of the elimination of those constraints to select a truly national candidate, what the Ames straw poll illustrates is that we have actually gone into reverse, granting a tiny, self-selected, and highly parochial group the right to decide who are the candidates worth considering and whom to eliminate.

The whole process is also profoundly anti-democratic and corrupt. The candidates buy tickets ($30 each) to enable people to participate, with the candidates acting like carnival barkers luring people to their particular sideshow. Michele Bachmann spent $180,000 to buy 6,000 tickets, of which almost 5,000 voted for her.

The media elevated this non-event to something of significance and also skewed the interpretation of the results. Ron Paul essentially tied with Bachmann in the vote (the difference was less than 1%) and yet the media treat her as if she was the sole winner and ignore Paul.

The most important quality that a candidate needs to possess to win the Ames straw poll is the ability to coax and bribe a tiny group of people to vote for them. This is precisely what the Founding Fathers sought to avoid. So why are we giving this non-event so much prominence instead of consigning it to the oblivion it deserves?

The problem with some liberal commentators

When I made my own predictions about what would likely happen in the budgetary process with the so-called Super Committee, it was even before the members of the committee had been selected because according to my model of how politics works, when it comes to basic issues of the economy, the decisions are made off-stage behind the scenes by the oligarchy and the political leadership, and the people deliberating these things in public are merely actors giving us the impression that they are deciding things.

It is important to note that the actors themselves may be quite sincere in thinking that they are autonomous agents, freely deciding the issues. But the reality is that by the time they reach those positions, the people who might do something that the oligarchy does not want have long been filtered out, because the system works well in creating the kinds of pressures that result in pre-ordained conclusions. The personal views of politicians become important only in those cases where the oligarchy does not care about the outcome (guns, gays, abortion, pledge of allegiance, burning the flag, compact fluorescent light bulbs, etc.)

This model differs considerably from the standard approach because many liberal commentators tend to still have enormous faith in the good intentions of the politicians who say they have liberal goals. For example, now that the Super Committee has been constituted, there has been considerable analysis of the past record and statements of its members, with a view to getting clues as to how they might decide. Steve Benen runs the liberal Political Animal blog over at the Washington Monthly. He is good source for political news because he scours the wire services for news and aggregates it is a useful way. But a recent post of his illustrates the basic flaw with many liberal commentators who place their faith in the supposedly good intentions of Democratic leaders rather than paying attention to what they actually do.

After listing Nancy Pelosi’s nominees to the Super Committee, people whose past records suggest that they may well agree to cuts in entitlements and no increase in taxes on the rich, he says the following:

I suspect the key takeaway from the House Democratic selections is that all three are key, close allies of Pelosi, and they will very likely be representing her interests during the negotiations.

Since I like Pelosi and agree with her expectations for the process, I consider this a positive development.

He is hopeful about the outcome because he ‘likes Pelosi’ and agrees with her ‘expectations’ for the process. But let’s look at Pelosi’s rhetorical trajectory, which is the standard Democratic one of first raising expectations amongst the base of the party and then slowly talking them down. On August 2, this was her position:

At a pre-recess press conference Tuesday afternoon, TPM asked House Minority Leader Nancy Pelosi (D-CA) whether the people she appoints to the committee will make the same stand she made during the debt limit fight — that entitlement benefits — as opposed to provider payments, waste and other Medicare spending — should be off limits.

In short, yes.

“That is a priority for us,” Pelosi said. “But let me say it is more than a priority – it is a value… it’s an ethic for the American people. It is one that all of the members of our caucus share. So that I know that whoever’s at that table will be someone who will fight to protect those benefits.”

Then on August 4, she began the familiar backtracking, using the ‘trigger’ of automatic cuts as the excuse:

House Minority Leader Nancy Pelosi (D-CA) says her caucus will be broadly united in a fight to protect Medicare and other successful programs from cuts when the committee convenes to reduce deficits by at least $1.2 trillion over 10 years. But neither she nor the people she appoints to that committee will publicly draw bright lines.

Far from suggesting that the Democrats she appoints on the committee will keep a wide-open mind to cutting benefits for seniors, she emphasized that her caucus is broadly unified against such measures. But she also said House Democrats on the committee will work toward a solution that’s better than allowing an enforcement mechanism — $500 billion in defense cuts, and domestic spending reductions, including a two percent cut to Medicare providers — to take effect. (My italics)

Then a little later she appoints people to the Super Committee who might well give in on cuts to Social Security.

That’s how it works. In this strip from 2010, cartoonist Tom Tomorrow describes Obama’s use of this same strategy during the health care debate.

Benen is a thoughtful person and generally good on issues so I do not want to be too hard on him. But his willingness to trust in the good intentions of democratic politicians symbolizes the weakness of mainstream liberal commentators. He reminds me of Kevin Drum at Mother Jones who said on an earlier occasion:

If it had been my call, I wouldn’t have gone into Libya. But the reason I voted for Obama in 2008 is because I trust his judgment. And not in any merely abstract way, either: I mean that if he and I were in a room and disagreed about some issue on which I had any doubt at all, I’d literally trust his judgment over my own. I think he’s smarter than me, better informed, better able to understand the consequences of his actions, and more farsighted. I voted for him because I trust his judgment, and I still do.

These people keep putting their trust in the good intentions of Democratic politicians, however many times their expectations are dashed. I am not sure why.

When the inevitable sellout occurs, watch for the Democratic leadership to proclaim it as a big victory because they supposedly prevented something much worse.

Tests of the existence of other universes

When Louis de Broglie first proposed in 1924 that particles had wavelike properties, the technological challenges to investigating the idea were so immense that the prospects for testing it seemed to lie very far into the distant future, if at all. But one of the features of science is that however incredible an idea may seem when it is first proposed, if it gains credibility and acceptance from the scientific community as a whole, it will only be a matter of time before someone finds an ingenious way to try and test it. So it was with de Broglie’s idea. It was such so beautiful in the way that it unified waves and particles in a symmetric way in quantum mechanics, that it spurred creative thinking and within just three years C. J. Davisson and L. Germer were able to construct an experiment that confirmed it, resulting in de Broglie receiving the Nobel Prize in 1929, an incredibly rapid pace of advance.

So it is with the multiverse idea, that entire universes can be created spontaneously from the vacuum and thus our own universe may be just one of an enormous number (as many as 10500) of universes, each having their own laws and structure. This idea not only does not violate the laws of science, it is not even a new theory, being in fact a prediction of other theories.

As with de Broglie’s hypothesis, when the multiverse idea was initially proposed there seemed to be no way to test it. But now people have come along with suggestions of how to do it, by looking for disk-like patterns in the cosmic microwave background that may be the telltale relics of collisions of other universes with our own.

Science is such fun.

The coming godless generations

Adam Lee points to data that show the rapid rise of nonbelief among young people, and points to stories of young people challenging the religious privilege that their elders took for granted.

Most of the student activists I named earlier have faced harassment, some from peers, some from the teachers and authority figures who are supposed to be the responsible ones.

But what’s different now is that young people who speak out aren’t left to face the mob alone. Now more than ever before, there’s a thriving, growing secular community that’s becoming increasingly confident, assertive, and capable of looking out for its own.

The Secular Student Alliance, a national organization that supports student atheist and freethought clubs, is growing by leaps and bounds in colleges and high schools. (This is especially important in the light of psychological experiments which find that it’s much easier to resist peer pressure if you have even one other person standing with you.) Student activists like the ones I’ve mentioned are no longer just scattered voices in the crowd; they’re the leading edge of a wave.

All these individual facts add up to a larger picture, which is confirmed by statistical evidence: Americans are becoming less religious, with rates of atheism and secularism increasing in each new generation.

[T]he more we speak out and the more visible we are, the more familiar atheism will become, and the more it will be seen as a viable alternative, which will encourage still more people to join us and speak out. This is exactly the same strategy that’s been used successfully by trailblazers in the gay-rights movement and other social reform efforts.

This is why it is important for atheists to not rest on our laurels just because we have won the argument. We have to continue to be a very visible and vocal presence in public life, so that those who are hesitant to speak realize that atheists are everywhere and that they have a support network.

I myself have been heartened by the number of people in my own institution who tell me that my atheist presence via this blog has helped them.

Victory for atheists in Little Rock

I wrote earlier about how a bus company in Little Rock, Arkansas asked for prohibitively high insurance for an atheist group to place the message “Are you good without God? Millions are” on its buses, claiming that they feared vandalism by religious people, providing an unintended ironic commentary on religion.

Now a federal judge has ruled in favor of the atheists saying that the bus company’s policy violated the free speech rights of atheists.

Radioactive heating of the Earth

Recent measurements show that about half of the 40 trillion watts of heat radiated continuously by the Earth comes from radioactivity taking place in its mantle and crust, while the remainder is due to the primordial heat that was created at the formation of the Earth and is located mainly in the core.

Historians of science are aware of the importance of the discovery of the radioactivity as an ongoing source of the heating of the Earth. Before the immense amount of heat associated with radioactive decay was discovered around 1903, physicists like Lord Kelvin had calculated the age of the Earth by treating it as an initially hot body that was steadily cooling. They concluded that it could not be older than 100 million years and could be as low as 20 million years. This made it very difficult, if not impossible, for the theory of evolution by natural selection, because it was a slow process that required long time scales. This was seized upon by religious people to argue against the evolution and in favor of the special creation of species by god. (See my series on the age of the Earth for a more detailed discussion of this.)

The discovery of radioactivity had two revolutionary impacts. It created an awareness that radioactivity was an ongoing source of the heating of the Earth that undermined all the earlier calculations of Kelvin and others, and it provided an important new tool for measuring time that opened the gates to new discoveries that rapidly pushed the age of the Earth to more than four billion years, giving plenty of time for evolution to take place.