You´d be hard put to find a better illustration of the old chestnut about the EMH economist whose friend tells him there´s a banknote lying in the road:
Can't be. If there was a bill on the ground, somebody would have already picked it up.
Where to begin? Most normal people would say: that´s another nail in the already well-sealed coffin of the EMH. But faced with indisputable facts about solar market prices and installation quantities, Cowen´s response is: where´s the solar boom or fossil bust in asset prices? He can´t see one, so the facts must be wrong, or more politely epiphenomenal noise. Note that the objection is not based on any falsifiable hypothesis about solar PV, such as: Germany will have to cancel its solar PV feed-in tariff as unaffordable, silicon feedstock supply will hit a new bottleneck like the one that kept prices from falling in 2004-2008, solar PV will turn out to cause cancer, impotence and obesity or at least will be thought to do so. (Now there´s a hot tip to the oil industry PR men: work up some scares.) For the record, while Germany did reduce its feed-in tariff, China has announced one.
You know, even after two years at Chicago, where like every professor tells you that same joke at least three times every semester, it never gets old, does it?
It's of course perfectly possible that markets are simply not recognizing the danger to fossil fuel stocks, and we are in for a very exciting disruption in the next ten years. (In which case, I am wrong about a carbon tax and other emissions controls; we should just wait eight years.)
On the other hand, it's also possible that people who trade those stocks for a living--some of whom may even be as smart as James Wimberly, have considered this possibility, and don't find it very likely. What might those reasons be?
1) Mindless trend extrapolation is hours of fun for the entire family, but it is incorrect at least as often as it is correct, and possibly more often.
Wimberly uses this graph:
And very possibly prices will keep falling, the way that microchips have. On the other hand, maybe they'll plateau. Wimberly points out that solar panels are fundamentally a manfuacturing business, not a resource business, which is certainly promising . . . but the prices of other manufactured goods that experienced steep declines did not necessarily keep plummeting to zero.
2) Solar panel costs are not the only cost of a solar installation. According to the Energy Bible (which comports roughly with other figures I've seen online), about half the cost, or a little more, of putting in solar panels comes from the cells. The rest comes from the other stuff you need: batteries, transformers, wiring, and labor. As far as I know, the cost of these things is not falling as fast as the cost of solar panels.
Assume that these costs have held relatively steady, with the labor component being the most unstable. Ten years ago, most of the cost of an installation would have been the solar panels. But as those prices decline, the installed cost (without tax incentives) will be increasingly dominated by labor and other materials. Assuming that that graph says what I think it does, that implies that even if cells become free, we'd plateau slightly north of the average electricity price.
3) There's a storage problem. Yes, intriguing things are being done with hot salt and so forth. But how attractive are the costs compared to home installations? What percentage of their total generation costs represent solar cells, versus labor and other things whose prices aren't falling so fast?
Putting the pieces together, our national battery occupies a volume of 4.4 billion cubic meters, equivalent to a cube 1.6 km (one mile) on a side. The size in itself is not a problem: we'd naturally break up the battery and distribute it around the country. This battery would demand 5 trillion kg (5 billion tons) of lead.
A USGS report from 2011 reports 80 million tons (Mt) of lead in known reserves worldwide, with 7 Mt in the U.S. A note in the report indicates that the recent demonstration of lead associated with zinc, silver, and copper deposits places the estimated (undiscovered) lead resources of the world at 1.5 billion tons. That's still not enough to build the battery for the U.S. alone. We could chose to be optimistic and assume that more lead will be identified over time. But let's not ignore completely the fact that at this moment in time time, no one can point to a map of the world and tell you where even 2% of the necessary lead would come from to build a lead-acid battery big enough for the U.S. And even the undiscovered, but suspected lead falls short.
What about cost? At today's price for lead, $2.50/kg, the national battery would cost $13 trillion in lead alone, and perhaps double this to fashion the raw materials into a battery (today's deep cycle batteries retail for four times the cost of the lead within them). But I guarantee that if we really want to use more lead than we presently estimate to exist in deposits, we're not dealing with today's prices. Leaving this caveat aside, the naïve $25 trillion price tag is more than the annual U.S. GDP. Recall that lead-acid is currently the cheapest battery technology. Even if we sacrificed 5% of our GDP to build this battery (would be viewed as a huge sacrifice; nearly a trillion bucks a year), the project would take decades to complete.
But even then, we aren't done: batteries are good for only so many cycles (roughly 1000, depending on depth of discharge), so the national battery would require a rotating service schedule to recycle each part once every 5 years or so. This servicing would be a massive, expensive, and never-ending undertaking.
Moreover, while some sort of battery-replacement would help deal with the base-load problem (solar and wind are more variable than conventional sources, which means they have limited applications), they don't fix the transportation problem. Batteries are heavy and expensive, and as I understand it, absent some fairly radical breakthrough, they won't work at all in aviation; the energy density isn't high enough to permit the plane to take off. They're better for autos, but people don't want the limited range those vehicles currently offer.
4) To really take the market by storm, solar (plus storage) doesn't need to beat the average cost of electricity; it needs to beat the individual cost of each fuel type. DOE seems to think that by 2016 solar is still going to be a lot more expensive per kilowatt hour than other sources:
It's a pretty long haul before they overtake new coal--much less already-existing coal plants, or advanced natural gas.
The most obvious use for solar is as a replacement for expensive peak-load natural gas power (as I understand it, air conditioning causes most of the demand for these plants, so solar would be a nice complement.) But unless it gets massive subsidies, solar (including any storage mechanism you come up with) is going to have to individually defeat each type of electricity plant on price and/or availability, not "the average retail price of electricity"--which already includes some expensive solar and wind power.
Maybe that's possible--though that would still leave transportation to worry about. But that graph doesn't show it.
I'd close by restating Tyler's question in a slightly different way: if the price of solar is really likely to keep falling until it's cheaper than coal, why don't we see this revealed in the behavior of global warming activists? Where are Greens saying "We've decided to move on to more pressing issues, because clearly, the carbon emissions problem is just about solved."
If solar panels really become cheap enough to replace most electric generation, that will be extraordinarily disruptive, in ways that will be both good and bad for the environment. But I'm not seeing a shift away from climate change in order to focus more on, say, sustainable water-use or species conservation. Everyone seems just as worried about climate change as they've ever been, even though such cheap solar panels would render the issue mostly moot.
Revealed preference and market prices certainly can't tell you everything about the future. But they can tell you a lot about what people believe about the future.
A new anatomical understanding of how movement controls the body’s stress response system
Elite tennis players have an uncanny ability to clear their heads after making errors. They constantly move on and start fresh for the next point. They can’t afford to dwell on mistakes.
Peter Strick is not a professional tennis player. He’s a distinguished professor and chair of the department of neurobiology at the University of Pittsburgh Brain Institute. He’s the sort of person to dwell on mistakes, however small.
“My kids would tell me, dad, you ought to take up pilates. Do some yoga,” he said. “But I’d say, as far as I’m concerned, there's no scientific evidence that this is going to help me.”
Still, the meticulous skeptic espoused more of a tennis approach to dealing with stressful situations: Just teach yourself to move on. Of course there is evidence that ties practicing yoga to good health, but not the sort that convinced Strick. Studies show correlations between the two, but he needed a physiological mechanism to explain the relationship. Vague conjecture that yoga “decreases stress” wasn’t sufficient. How? Simply by distracting the mind?
In the name of emotional well-being, college students are increasingly demanding protection from words and ideas they don’t like. Here’s why that’s disastrous for education—and mental health.
Something strange is happening at America’s colleges and universities. A movement is arising, undirected and driven largely by students, to scrub campuses clean of words, ideas, and subjects that might cause discomfort or give offense. Last December, Jeannie Suk wrote in an online article for The New Yorker about law students asking her fellow professors at Harvard not to teach rape law—or, in one case, even use the word violate (as in “that violates the law”) lest it cause students distress. In February, Laura Kipnis, a professor at Northwestern University, wrote an essay in The Chronicle of Higher Education describing a new campus politics of sexual paranoia—and was then subjected to a long investigation after students who were offended by the article and by a tweet she’d sent filed Title IX complaints against her. In June, a professor protecting himself with a pseudonym wrote an essay for Vox describing how gingerly he now has to teach. “I’m a Liberal Professor, and My Liberal Students Terrify Me,” the headline said. A number of popular comedians, including Chris Rock, have stopped performing on college campuses (see Caitlin Flanagan’s article in this month’s issue). Jerry Seinfeld and Bill Maher have publicly condemned the oversensitivity of college students, saying too many of them can’t take a joke.
Donald Trump’s campaign manager wants to destroy the left. And the GOP nominee is just the most recent vessel of convenience in his consequences-be-damned crusade.
Stephen Bannon, who recently took over as Donald Trump’s campaign manager, once gave an interview, while promoting his 2010 film, “Fire From the Heartland: the Awakening of the Conservative Woman,” where he argued that Sarah Palin, Michele Bachmann, and Ann Coulter pose an existential threat to the left.
“These women cut to the heart of the progressive narrative,” he explained. “That's one of the unintended consequences of the women's liberation movement––that, in fact, the women that would lead this country would be feminine, they would be pro-family, they would have husbands, they would love their children. They wouldn't be a bunch of dykes that came from the 7 Sisters schools."
The quote captures a key attribute of the former U.S. Navy officer, whose stints at Georgetown University, Harvard Business School, and Goldman Sachs afforded a foothold at the core of America’s elite, enabling him to launch a film career that began with a Sean Penn collaboration before segueing into polemic right-wing documentaries.
The candidate’s campaign bought $55,000 worth of his newest book, Crippled America. But did they follow the law?
Sales of Donald Trump’s latest book, Crippled America, were decent, if not great—they easily beat out every other Republican candidate except for Ben Carson, according to Nielsen. But the Trump campaign found one way to boost sales: buying the books themselves.
The Daily Beast spotted in FEC filings that Team Trump purchased more than $55,000 worth of the book. (It’s been re-released in paperback with the sunnier title, Great Again.) Now, candidates buying up their own books is nothing new, but there’s a legal issue here. Campaigns can buy books in bulk assuming they don’t pay royalties, because if they do, then the campaign has effectively paid the candidate—which is against the law.
“It’s fine for a candidate’s book to be purchased by his committee, but it’s impermissible to receive royalties from the publisher,” legal expert Paul S. Ryan told the Beast. “That amounts to an illegal conversion of campaign funds to personal use. There’s a well established precedent from the FEC that funds from the campaign account can’t end up in your own pocket.”
Bruce Springsteen’s breakout album embodied the lost ‘70s—the tense, political, working-class rejection of an increasingly unequal society.
Forty years ago, on the eve of its official release, “Born to Run”—the song that propelled Bruce Springsteen into the rock-and-roll stratosphere—had already attracted a small cult following in the American rust belt.
At the time, Springsteen desperately needed a break. Despite vigorous promotion by Columbia Records, his first two albums, Greetings from Asbury Park, N.J. and The Wild, The Innocent, and the E Street Shuffle, had been commercial flops. Though his band spent virtually every waking hour either in the recording studio or on tour, their road earnings were barely enough to live on.
Sensing the need for a smash, in late 1974 Mike Appel, Bruce’s manager, distributed a rough cut of “Born to Run” to select disc jockeys. Within weeks, it became an underground hit. Young people flooded record stores seeking copies of the new single, which didn’t yet exist, and radio stations that hadn’t been on Appel’s small distribution list bombarded him with requests for the new album, which also didn’t exist. In Philadelphia, demand for the title track was so strong that WFIL, the city’s top-40 AM station, aired it multiple times each day. In working-class Cleveland, the DJ Kid Leo played the song religiously at 5:55 p.m. each Friday afternoon on WMMS, to “officially launch the weekend.” Set against the E Street Band’s energetic blend of horns, keyboards, guitars, and percussion, “Born to Run” was a rollicking ballad of escape, packed full of cultural references that working-class listeners recognized immediately.
The health benefits are clear. The political benefits are newly relevant.
Next time you enter an elevator, walk in and keep facing the back wall. If you stay that way, in my experience, people will laugh or ask if you’re okay. (That’s an opportunity, if you want, to say you would love for someone to define “okay.”)
Standing this way breaks unstated rules of how we’re supposed to behave in elevators. Detaching from expectations gives people an excuse to talk, to acknowledge one another’s humanity. Absent a break in the order, the expectation is silence.
(Of course, you can make a quick joke—my favorite is, if the elevator is stopping frequently, “What is this, the local train?”—and expect a modicum of laughter. But even if the joke goes over well, the rule seems to be that you can’t say it more than once in the same ride.)
The global education pioneer eases students into the classroom.
Heading into my first year of teaching in Helsinki I felt pretty nervous. One of my graduate-school professors—a former Massachusetts Teacher of the Year—had warned me that Finnish students were academically advanced, especially in math. Indeed, Finland’s students had excelled on international standardized tests like the PISA for more than a decade. But it wasn’t just those high-performing Finnish students that intimidated me. Their teachers did, too.
If I had chosen to pursue master’s-level training as an elementary-school teacher in Finland (instead of the United States), I would have applied to the small handful of teacher-training universities, where annual acceptance rates hover around 10 percent. These programs are so selective, claimed The Atlantic journalist Amanda Ripley in her book, The Smartest Kids in the World, they’re “on the order of MIT.” Furthermore, Finland’s classroom teacher-training programs require five years of coursework, practicum, and thesis writing. The Finnish version made my two-year master’s degree in elementary education, through a non-selective college in the Boston area, look quite humble.
City dwellers spend nearly every moment of every day awash in Wi-Fi signals. Homes, streets, businesses, and office buildings are constantly blasting wireless signals every which way for the benefit of nearby phones, tablets, laptops, wearables, and other connected paraphernalia.
When those devices connect to a router, they send requests for information—a weather forecast, the latest sports scores, a news article—and, in turn, receive that data, all over the air. As it communicates with the devices, the router is also gathering information about how its signals are traveling through the air, and whether they’re being disrupted by obstacles or interference. With that data, the router can make small adjustments to communicate more reliably with the devices it’s connected to.
Apple just released a patch that fixes three giant vulnerabilities in iOS.
The software update that Apple just released for every iPhone and iPad doesn’t activate any new features—but it does patch three enormous security holes that would allow a savvy hacker to access just about every corner of an iOS device.
If exploited correctly, those flaws allow an intruder unprecedented access to an iPhone. They allow attackers to read every email, text message, calendar item, and file saved on the device; peruse photos and videos; listen in on phone calls; track the device’s location; and remotely turn on its microphone and camera. The phone’s owner would have no idea that anything out of the ordinary was going on.
The vulnerability was discovered by security researchers at Lookout, a mobile software security company, and Citizen Lab, a technology-focused academic research center at the University of Toronto. The researchers there were tipped off by a human-rights activist in the United Arab Emirates, who forwarded a pair of suspicious-looking text messages he received earlier this month from an unknown number. When they examined the link included in the text, they found that it led to a site designed to infect phones with a very advanced virus. The discovery was first reported by Motherboard and The New York Times.