Saturday, August 25, 2007
Nutball Bait (Kevin, are you there?)
Mind you, sometimes a less desirable debater comes along. In a recent post, I foolishly offered to provide a spot for a nutball named Kevin to spew his brand of vitriol, and for myself and others to point out his errors, or at least improve his grammar. I did this to keep a long, rambling argument thread out of Ed's blog, since he tries to keep the comment threads at least vaguely related to the entry to which they're linked. That's what this post is for - a starting point for the argument. I don't really expect him to show up, because he got rather soundly trounced on what little content his initial comments contained, and he hasn't been back. But just in case - here it is, Kevin, go nuts. Anyone who shows up here that isn't a Culture Wars regular is encouraged to go back and check out that post - and for that matter, the rest of Ed's blog.
Thursday, August 23, 2007
Our Days Are Numbered
There will come a time when every human on Earth is dead.
The only questions are when and how.
Nuclear holocaust. If a global thermonuclear war happens, then the resulting clouds of fallout could kill most of those who lived through the blasts. Anyone who manages to avoid that might starve trying to find uncontaminated food supplies. Even if that problem is solved, they might find themselves with no healthy mate, thus preventing the next generation. And if they pass all those hurdles, then their reproductive organs might be damaged enough to prevent viable offspring.
That could happen tomorrow. On the other hand, it could have happened yesterday, or thirty years ago, and it hasn’t yet. There is at least some hope that it won’t happen at all. In any event, there may yet be time for other options.
Global Warming. A few degrees one way or the other won’t kill off humanity, but there’s no real reason it has to stop there. It is at least vaguely possible that the greenhouse effect could feed on itself and become a runaway. For the end result of that, take a look at Venus – surface temperatures averaging over 860° F. It’s going to be hard for anyone to stay alive in temperatures too hot for baking.
This one isn’t real likely – the theory of global warming is fairly well-established, and there’s not much room in it for a runaway greenhouse effect. On the other hand, theory is not a substitute for testing – and this test could have a very high learning curve.
Ice Age Maximus. Current theories in physics indicate that nuclear fusion produces neutrinos. These faster-than-light particles are hard to spot – they’ve got a 50% chance of getting through a light-year thickness of lead. Nonetheless, there are theoretical means of capturing them, and sites constructed to do just that – capture the neutrino’s produced by the Sun’s fusion. Unfortunately, they haven’t found any. This leads to a few possible conclusions, but one is that the nuclear furnace of our nearest star has gone out.
That would mean that all that light and heat we currently enjoy is just the remnants of earlier fusion percolating up through those thousands of miles of compressed gas – and that at any time now, it could stop. If that happens, it’s gonna get chilly. Not just the ice caps expanding and glaciers forming. Not just the oceans freezing over. I’m talking about the atmosphere freezing out, one gas at a time – a layer of dry ice, buried under a blanket of frozen nitrogen, with drifts of oxygen settling out on top. I’m talking about trying to choose between breathing frozen air or breathing vacuum – not that your choice will make a lot of difference.
This is another one that could happen at any time. But again, it hasn’t happened yet.
Various other methods – a massive comet strike could crack the Earth like a coconut. The Sun’s fusion might restart, igniting a massive solar flare that would blast our atmosphere off the surface, frying half the planet instantly while the other half struggled – briefly – with storms that would make a hurricane look like a summer breeze. A bioweapon gone wrong that wipes out such a high percentage of humanity that the few survivors die of other diseases, infrastructure collapses, or simply can’t find each other to reproduce and keep us going. If nothing else, the Sun will eventually expand to a red giant, turning the Earth to a charred cinder similar to Mercury.
There will come a time when every human on Earth is dead.
It would be nice if my descendents lived somewhere else when that happens.
Thursday, July 5, 2007
Hobson's Choice
The recent attacks in Great Britain got me thinking about terrorism, specifically foreign terrorism. Here’s what I’m coming up with – I’d really like someone to point out my errors.
Assumption #1: In our society, constructing an Improvised Explosive Device (IED) with sufficient power to kill or maim large numbers of people is a trivially simple exercise.
Analysis: High-powered explosives are somewhat controlled. However, ammonia-based explosives are simple to make from easily-available materials. Gasoline, propane, and other fuels can also be used to develop explosive devices. Ample material to provide fragmentation effects can be found in any hardware store or junkyard. While mass purchases of some of these materials (e.g. ammonia-based fertilizer) might be controlled, a series of smaller purchases over a longer period of time could provide raw materials for an IED of any desired size.
Assumption #2: Emplacing such an IED is also a trivially simple exercise.
Analysis: So-called “important” targets are increasingly protected. Government buildings, large office buildings, airports, power plants, chemical facilities…the list of protected sites is seemingly endless, but the key word is “seemingly.” Schools, shopping centers, fairgrounds, parade routes, smaller office buildings, restaurants, bars – even just an area on the road that frequently suffers traffic jams – are all possible targets for a terrorist attack. There’s just no way to protect all of them.
Assumption #3: Foreign terrorists bear sufficient enmity against the United States that any form of engagement between our country and theirs is sufficient to encourage terrorist acts against us.
Analysis: This one is purely my opinion – but I think it is nonetheless correct. Our support for Israel, our financial and political involvement with several Middle Eastern countries, and the immense popularity and availability of our entertainment media all provide ample sources of outrage for Islamic fundamentalists. While other sources of foreign terrorism in the U.S. may exist, they are so much rarer that I don’t see a need to analyze the roots of their hatred for us.
Conclusion: Foreign terrorists will continue to attack our nation and our allies as long as any significant contact remains between our culture and theirs. While some attacks may be stopped through luck, good police work, or incompetent terrorists, others will inevitably succeed. This may someday be stopped by the foreign culture adopting more democratic and liberal principles – but that will not be soon, and is unlikely to come from our direct intervention.
Responses:
1. Status Quo. We can accept some level of innocent casualties as a cost of doing business in the regions from which the terrorists come. While our intelligence and police forces will improve their capabilities, so will the terrorists. As long as our basic political structure is unchanged, our open society is vulnerable to attack. The question becomes – how many dead citizens are a fair price for supporting Israel, exporting TV shows, and importing oil? And how long are we willing to pay that price while we wait for them to turn away from violence?
2. Disengage. That entails cutting down our crude oil usage by about two thirds, to live off our own domestic production – if we continue to import any oil at all, the fungible nature of the product means that some of it will come from the Middle East. It means cutting off Israel from our support – and thus likely leading to the use of one or more nuclear bombs when Israel is forced to defend itself without the threat of allies coming to assist. It means cutting off all immigration, student visas, and even tourist visas from the area, lest some of them become contaminated by our culture and then return to spread that contamination. I suppose we can ask the countries involved to handle censoring TV, books, and movies, and provide our assistance in censoring the Internet. Politically and economically, I think this one is beyond any realistic expectation.
3. Retaliate. Announce to the world that any country or culture that attacks us with acts of terrorism will in turn be attacked. Violently, and without too much regard for the nature of the targets. I’m pretty sure that we could strike fear into the heart of the most rabid terrorist – if a ten to one casualty ratio isn’t enough, how about a hundred to one? Thousand to one? An air raid over Mecca and Medina? We have the physical means to do whatever it takes to get their attention. Only political will and morality prevent it.
Of course, such violence breeds anger and resentment, which breeds more terrorists. That could end up as a genocidal war.
Is there a flaw in my assumptions? My conclusion? A fourth response? I don’t like any of the answers I’ve come up with – I could really use another one. Anyone?
Friday, June 29, 2007
Creating Excuses
I’ve been reading a lot of other blogs and postings lately regarding the theory of evolution vs. creationism/intelligent design. Anyone who’s read my archives knows my feelings on the matter. However, I’ve finally found a way to articulate the difference between the THEORY of evolution, and the NOTION of creationism.
To develop the theory of evolution, scientists looked at the facts available, and tried to imagine an explanation that would cover them.
To develop the notion of intelligent design, theists determined that a Creator was responsible for the world around them, and then identified specific facts and arguments that supported it.
That’s it. And to me, it explains so much. For instance, a lot of the IDer arguments against evolution hinge on holes in the research – gaps in the fossil record, lack of a detailed chain of alterations for a complicated survival mechanism, and so forth. The concept that a hole in the research might later be filled by new research is lost on them – to a creationist, a failure to completely explain every detail is a failure of the theory as a whole. From their viewpoint, and with their base assumptions, this might even be reasonable. After all, their theory DOES explain every detail – God did it. (For IDers, an unnamed Creator did it.)
Of course, that attitude causes the other major disconnect that leads to long useless arguments between the two sides. Creationists can ignore or minimize the importance of any contrary evidence by again turning to God. This leads me to another conclusion:
A valid test of the intellectual honesty of a person or position is to ask what it would take to prove them wrong.
For a scientist, the answer is easy – provide convincing data that contradicts the established theory. Such events have occurred in the past – the terra-centric view of the Solar System gave way to the helio-centric. The theory of a solid Earth was supplanted by plate tectonics. Newtonian physics has been replaced by Einsteinian physics, and further refined by even more esoteric theories. I note that in many cases, individual scientists failed to adapt their beliefs to new theories, but as they retired or died, the newer theories have become generally accepted as experimental or other evidence provided support. This is true of evolution, as well. The basic concepts from Darwin’s The Origin of Species have been refined over time as scientists have gained a better understanding of the mechanics of evolution.
But what would it take to prove a creationist wrong? I have yet to find any evidence, no matter how overwhelming, that can shake the faith of a committed theist. For example, the Creation Museum and its parent organization, Answers in Genesis, make the claim that hundreds of feet of rock in multiple layers were all deposited during the Great Flood. (Examples: chalk cliffs and rock and fossils.) The fact that some of those layers are igneous or metamorphic, surrounded by multiple layers of sedimentary, is conveniently ignored in favor of the idea that it all came about as a result of the Flood.
The evidence of species changing as a result of selection is fairly obvious in domesticated animals – for example, the Chihuahua and the St. Bernard. But, creationists reply, that’s merely MICRO-evolution. They haven’t completely differentiated into new species yet, because they can still interbreed! (Mind you, those puppies are unlikely to be born alive, but mere fertilization qualifies them as the same species.) Of course, the idea that such micro-evolution could eventually lead to actual species differentiation is considered absurd – there is apparently a barrier between species that cannot be broken, no matter how different the breeds become.
Other creationists cry out, “If life can form independently, then why can’t that be replicated in the lab? You can’t take a beaker of chemicals, swirl them around, and have a microbe or a virus appear…so it couldn’t have happened!” In this, they ignore the wonders of small odds vs. large numbers. We’ve been trying such things for a few years – maybe even a few decades – in some small number of labs, in some relatively small number of beakers. The universe provided a large, possibly infinite number of planets, and several billion years for a result to occur – and so far, we only have evidence that it happened once. That’s even worse than lottery odds…and yet, sooner or later, SOMEONE always ends up taking home the jackpot. But let’s take their side for a moment – does that mean that if we do at some point manage to create life in the lab, they’ll shut up?
It turns out that scientists at the University of New York at Stony Brook did just that. In July 2002. That’s five years ago. Any signs of the creationists shutting up? Well, that Creation Museum just opened this year – I’d take that as a “no.”
So…what will it take to get a creationist to admit he’s wrong?Wednesday, May 30, 2007
The Age of Unreason
Is reason dead? Has critical thinking lost credence in the world today? I fear it may have. It seems that “the public,” that amorphous mass of unwashed, uneducated peons, has lost interest in facts, considering them less important than what sounds good.
I suppose that’s a natural result of depending on television for our news. A successful network can devote only a limited time to news, and that limited time has to include ALL of the current events that the producers deem to be “newsworthy.” Those constraints place fairly harsh limits on the amount of time a news anchor can devote to any one story. That has conditioned us to accept a 10-second “sound bite” as a legitimate and complete statement of position on an issue. Yes, “a picture is worth a thousand words,” but in TV news, a video of someone’s face adds little to the message. The message itself is usually short enough that it would be considered a summary paragraph in a newspaper article or formal essay.
In such a limited format, there’s no time to present details and supporting facts. In addition, the journalists love to report controversy, which means that instead of reporting facts on which to base our decisions, they report the sound bites and bullet statements from “both” sides – even if there are more than two points of view to be found. And to increase the friction, they often show the most extreme supporters on each side, guaranteeing maximum vitriol and malice in their claims of the evils of their opponents.
And THAT’S where the problems get even worse. The issue and the proponents become completely polarized. The spokespeople, trying to sway the maximum number of people in their limited time in the spotlight, turn their sound bites away from statements of fact toward emotional pleas, misleading claims, and personal attacks on the opposition.
Over the next several days, I’m going to take a look at one such issue – illegal immigration. I had originally intended to cover several of the more obvious simplified arguments within this single entry…but I discovered I had too much to say on them. Rather than simplify and shorten my own arguments, I’m asking you, my loyal readers (both of you) to follow with me over the next week or so.
Edit, 28JUN2007 - I lost interest in the examples. Sorry. If you really want them, let me know. Moving on now.
Sunday, May 27, 2007
The Indianapolis 415
It was an ugly, ugly race.
I knew Indy had made some rules changes. For starters, the IRL is now running on 100% ethanol. They changed the fuel tank sizes, and eliminated the “dial-a-mixture” option that let a driver trade speed for fuel mileage when the situation called for it. But there must’ve been some other changes, because this was a totally different race than what I’ve seen in the last several years. Impressions:
- Rain, rain, go away. Bad enough that we had to sit through a three-hour rain delay at lap 113, unsure if they’d get the track dry in time to restart. Worse, they only managed another 53 laps before the rain came back and ended the race for good. Poor Tony Kanaan, who led the pack into the delay, must be truly annoyed that they took away his victory when it was obvious to everyone that they still wouldn’t be able to make the full 500 miles before the rain returned.
- Clean track, messy race. Speaking of rain, apparently, it had been raining on the track all day Saturday, too. That cleaned off all of the rubber that a full month of practice and qualifications had deposited, leaving the track clean, pristine…and very, very slick. There were seven separate one-car crashes that appeared to be at least partly caused by a car straying off the groove. Granted, they were also partly caused by less-experienced drivers coming up too fast on competitors, and having to dodge or slow down too fast – but that sort of thing doesn’t usually lead to this many cars hitting the wall
- Nobody ever pulled away from the pack. Usually, there will be a “lead pack” of three or four cars, then another small group of cars that stay on the lead lap without ever really being competitive, then a whole bunch of cars that gradually slip farther and farther off the lead. I’m accustomed to seeing a few cars five or more laps behind by the halfway point, and as many as ten or fifteen laps down by the end, with several cars scattered out with lesser deficits. Not this time. Little Al did fall five laps back by the end, but the next-slowest driver still running was only three laps back, and there were 13 cars still on the lead lap. There would have been 17 if not for a major accident right before the rain. The huge number of cautions probably had something to do with that – 10 separate yellows for 55 laps, about 1/3 of the race. But mostly I think that no one had the speed to really pull away…almost like the cars had governors installed to restrict everyone to the same maximum speed. I’m sure that isn’t literally true, but I suspect the rules changes may have had much the same effect.
- Cascading lead changes. There were nine different race leaders, and they swapped out positions 24 separate times – and that doesn’t count the times when someone would take the lead in the first turn, and then lose it again before they crossed the Yard of Bricks. Nobody had enough speed to hold on to the lead…they couldn’t overcome the speed advantage of the car drafting behind them. Besides, the pit stops got skewed during the various cautions, so every time the leader came in for a refuel, someone else could stay out and take over. It made for exciting racing, I suppose, but it also made things very hard to follow. There was just no way to tell who was doing well and who merely held the lead because the real leaders were making up ground from their last pit stop. Dario never really seemed to be challenging for the lead…but when the checkered flag came out, there he was in front.
- Safety first. As if the seven single-car incidents weren’t enough, Marco Andretti made an ill-considered pass right at the end, and took out himself and three other cars. His car flipped, and it looked like he ran about a hundred yards with his helmet touching the track. Despite all that, there were apparently no serious injuries…Marco even gave an interview outside the clinic shortly after the race. I’m not sure that I like ALL the rules that control the cars’ setups…but you can’t fault the safety devices.
I still enjoyed the race, of course. The imminent rain added a sense of urgency to every lap, and every lead change. Seeing Marco and Danica in second and third when the first rain delay hit was very exciting – though disappointing when they finished 24th and 8th, respectively. And I sort of like Dario, so I’m pleased to see him win. All the same, I hope they tweak the rules a bit next year to give the mechanics a little more freedom to stand out…and I REALLY hope it stays dry next Memorial Day Weekend!
Monday, May 21, 2007
Get the Facts!
I read a story by reporter Kim Barker in the Chicago Tribune yesterday. It started with an anecdote about a deployed Soldier going through a divorce during the four-month extension on his original one-year deployment. The implication, of course, is that the extension CAUSED the divorce, but that is not specifically stated. The article continues by mentioning three other pending divorces and various other “family” problems the Soldiers in his unit are experiencing.
The article goes on to discuss the reason for longer deployments, and asserts that these extensions will hurt Army retention and recruitment, possibly even leaving the all-volunteer Army “permanently damaged.” As evidence, it includes a mention of a Pentagon survey of over 1700 Soldiers and Marines: “A survey…said longer combat deployments could hurt troops' morale and mental health.”
That may all be true. Extended deployments may be causing broken families, reduced retention, problems in recruiting, lower morale, reduced Army effectiveness, and maybe even loss of hair and poor taste in neckties. I AM sure, however, that this so-called “news story” doesn’t provide any useful information to back up the hints, assertions, and innuendo.
For starters, a survey of troops is capturing their opinion on the subject. Unless the respondents were all military psychologists, psychiatrists, and chaplains, then their untrained, uninformed opinions are pretty much meaningless. I haven’t seen the wording of the actual questions the troops answered…but from the brief mention, it sounds much like asking 1700 United Auto Workers “Would increasing the work day to nine hours with no extra pay damage morale in your workplace?” Why don’t we have the numbers on USEFUL questions?
- What is the divorce rate within the Army and Marine Corps now, as compared to seven years ago?
- What is the military divorce rate as compared to the nation as a whole, both now and pre-9/11?
- What is the military divorce rate compared to the divorce rate of other high-stress jobs, like air-traffic controller or police officer? Or compared to other jobs that involve family separation, like traveling salesman or long-haul truck driver? Again, both now and seven years ago?
- What is the military divorce rate within six months before and after a deployment, as compared to within six months of a one-year unaccompanied assignment to Korea?
- What is the Army-wide retention rate, then and now? How many troops are choosing to stay in? How many are reenlisting within a year or two after getting out?
Those would all be useful statistics in determining the damage that long deployments are doing to the force, and I suspect that all of them are available to a hard-working and moderately intelligent news reporter. They might even support the tone and implications of this editorial-masked-as-journalism – though my recollection of statistics in other reports doesn’t quite match up with that. But with no truly useful information, this story is a waste of newsprint or electrons.
I brought up this issue not to criticize Ms. Barker. Her news story seems to me to be fairly typical of journalism today – a heavy emphasis on anecdotes and emotional appeals, while minimalizing hard facts. Fortunately, I’ve found several resources that encourage critical thinking.
- Snopes.com is the best resource I know to combat “I’ve heard…,” “They say…,” and “Everybody knows…” Mr. and Mrs. Mikkelson research rumors on nearly any subject, especially those that deluge your e-mail inbox. They depend on and link you to multiple and reliable sources to confirm or deny the truth behind the rumors – and when they can do neither, they tell you their best opinion, clearly identifying it as such.
- Mythbusters is an extraordinarily entertaining TV show. Adam and Jamie are remarkably good at portraying themselves as overgrown kids with truly wonderful toys, up to and including a cement mixer full of explosives. But behind the explosions and laughs, they clearly demonstrate the key steps of the scientific method – propose a hypothesis, develop an experiment to test it, and keep an open mind about the results. They have debunked a lot of what “everyone knows,” and surprised themselves with things they were certain would never work. And besides, they usually manage to destroy something in a spectacular manner by the end of the show.
- The Skeptics Society has a variety of publications – the two I’m most familiar with are the Skepticality podcast and the Skeptic e-newsletter. I’m a little behind on the podcast…I started with their archived episodes, and have only gotten as far as August 2005. At any rate, both of them include interviews, news items, book reviews, and other tidbits, with people such as Adam Savage (Mythbusters), James Randi (The Amazing Randi, debunker of psychics), and Michael Shermer (author of Why People Believe Weird Things and The Science of Good and Evil). They tend to focus on atheism/agnosticism vs. religion and spirituality, especially in areas like the Intelligent Design/Evolution debate, and “psychic phenomena.” So far, their underlying attitude is a bit too self-righteous and self-congratulatory for my taste, but the information and arguments they provide more than makes up for it.
- NPR provides another useful podcast – Science Friday. These are recordings of the weekly radio show, presenting science news and headlines. The host, Ira Flatow, frequently brings in guests with differing viewpoints, providing a genteel debate that often serves to bring out more truth than a newsreader could manage alone. He also takes calls from surprisingly intellectual and well-informed listeners with often insightful questions – I assume the callers are well-screened, but the screening process does not appear to filter out reasoned disagreement.
- Scott Adams writes The Dilbert Blog. It may not truly belong on this list, as I find some of his writings to have more certainty than the evidence supports. But he frequently comes up with brilliantly bizarre looks at current events that can make you think about them much harder than you normally might. He often proposes solutions to “unsolvable” problems (like the Middle East) that initially draw a dismissive laugh…but then cause you to struggle to find the flaw that makes them unworkable. Reading the “comments” sections will also show you dozens of examples of fuzzy thinking. Plus, of course, he’s frequently funny.
- STATS.org – This site, more than any other, inspired this blog entry. Affiliated with George Mason University, the Statistical Assessment Service analyzes news stories to identify bad science, misleading statistics, poor research, and deliberate misinformation. Reading the articles on the site has made me much more suspicious about the articles I read elsewhere…and that suspicion and skepticism enables me to more easily spot the missing facts. That, in my opinion, is a key skill for any would-be informed citizen.
As Robert Heinlein said in “Time Enough For Love” - “What are the facts? Again and again and again--what are the facts? Shun wishful thinking, ignore divine revelation, forget what "the stars foretell," avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history"--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!"
Even if the journalists won’t give them to you.