Showing posts with label ddulite. Show all posts
Showing posts with label ddulite. Show all posts

Monday, May 23, 2016

Where were we? Oh, yeah, the Hyperloop

Before we get further into the story, there is an important aspect that has bizarrely gone unmentioned in most of the coverage of this.

The Hyperloop is a conceptual high-speed transportation system originally put forward by Elon Musk, incorporating reduced-pressure tubes in which pressurized capsules ride on an air cushion driven by linear induction motors and air compressors.

The outline of the original Hyperloop concept was made public by the release of a preliminary design document in August 2013, which included a notional route running from the Los Angeles region to the San Francisco Bay Area, paralleling the Interstate 5 corridor for most of its length. Preliminary analysis indicated that such a route might obtain an expected journey time of 35 minutes, meaning that passengers would traverse the 350-mile (560 km) route at an average speed of around 600 mph (970 km/h), with a top speed of 760 mph (1,200 km/h). Preliminary cost estimates for the LA–SF notional route were included in the white paper—US$6 billion for a passenger-only version, and US$7.5 billion for a somewhat larger-diameter version transporting passengers and vehicles —although transportation analysts doubted that the system could be constructed on that budget.

To the extent that there is an idea in the proposal, it is not, by any stretch of the imagination, a new one. Pretty much everyone in relevant fields of engineering has at least tossed these concepts around in the back of their heads. Many, if not most, have even sketched out something similar on the back of a notebook during a boring class.

We haven't seen a real life version of one of these trains, not because there's necessarily anything wrong with the basic concepts, but because actually making something like this would require either a tremendous financial commitment or a major advance that dramatically reduces the cost of construction. None of the recent proposals have seriously addressed these problems, let alone solved them; they have simply waved them away.

Joseph Brownstein had an excellent summary of some of the issues:

“There’s no way the economics on that would ever work out,” said Dan Sperling, founding director of the Institute of Transportation Studies at the University of California, Davis.

At projected capacity levels, the so-called Hyperloop would transport 840 people each hour, each paying $20. With capital, labor and maintenance costs factored in, Sperling said, “Those numbers, even in the most outlandish visionary way, do not make any sense at all. The whole technology is unproven. I know he’s a brilliant guy, but it just doesn’t pencil out.”

...

Bonnie Lowenthal, chair of the California State Assembly's Transportation Committee told the Wall Street Journal, "Big infrastructure projects in California are very difficult. We have very complicated funding, we have environmental protections, seismic faults and land acquisition – but that's just the shortlist.”

Beyond land-purchase issues, any realistic estimate of the costs would say Musk and his team are underestimating them "by at least a factor of 10 to 20," said Michael L. Anderson, an associate professor of agricultural and resource economics at the University of California, Berkeley.

He said the more realistic price for a one-way ticket would reach about $1,000, based on his own projections of construction costs and Musk's proposed capacity of 840 riders per hour.

"You're talking $100 billion to build what they’re proposing,” Anderson said.

Anderson said that while some of the infrastructure is novel, the elevated guideway was not unlike existing structures such as the Bay Area Rapid Transit's aerial tracks. For the Hyperloop's tracks, that alone would cost in the tens of billions. As for the pipeline for the cars, he said, oil pipelines are $5 million to $6 million per mile, and they are seven times narrower than the Hyperloop's would need to be. In addition, the Hyperloop track could not change direction abruptly the way an oil pipeline could.

"It really has to be built to much higher standards than anybody has ever built a pipeline to," Anderson said.

Ultimately, it comes down to the Hyperloop not being able to transport enough people, Anderson said.

"If it’s going to cost $100 billion, you need to make it very high capacity to make it a worthwhile investment and it’s not," he said, explaining that in order to get a 6 percent return, tickets for the Hyperloop built at his projected costs and Musk's proposed capacity would have to be $1,000 each -- a price not enough people would be willing to pay to sustain it.

Like the woman said, that's the shortlist.

Friday, May 20, 2016

I'm going to see how far I can go into this thread without using either the expressions "train wreck" or "perfect storm."

The hyperloop seems almost designed to prey upon the press's weakness when it comes to engineering and technology. It's a story that demands a grasp of infrastructure, implementation, and the distinction between mature and immature technology. On top of that, it combines an alarming number of the elements of the stories that have suckered the press corps in recent years. Silicon Valley hype, CEOs who are inevitably described as "visionary," ludicrously optimistic cost estimates, and geewhiz heavy technology.

Already, we are seeing many aspects of the Mars One fiasco playing out again:

Reporters are asking all the wrong questions;

They are seeking out "experts" with highly unrepresentative opinions;

They are credulously accepting numbers that are easily an order of magnitude off;

As far as I can tell, few have even bothered to look at a map of the route. Otherwise, we'd surely be hearing more about the bizarre decision to start a super sonic rail line to San Francisco just south of the Tejon Pass;

When the occasional journalist does actual... you know... reporting, it has little to no impact on the discussion.

This is going to get ugly.

Friday, May 13, 2016

One of these I'm actually going to write that ddulite mega-thread...

And when I do, I'm definitely going to use extensive quotes from this beautifully brutal piece by Evgeny Morozov.
What the Khannas’ project illustrates so well is that the defining feature of today’s techno-aggrandizing is its utter ignorance of all the techno-aggrandizing that has come before it. The fantasy of technology as an autonomous force is a century-old delusion that no serious contemporary theorist of technology would defend. The Khannas have no interest in intellectual history, or in the state of contemporary thought about technology. They prefer to quote, almost at random, the likes of Oswald Spengler and Karl Jaspers instead. This strategy of invoking random Teutonic names and concepts might work on the unsophisticated crowds at Davos and TED, but to imagine that either Spengler or Jaspers have something interesting or original to tell us about cloning, e-books, or asteroid mining is foolish. “A new era requires a new vocabulary,” the Khannas proclaim—only to embrace the terminology that was already in place by the end of the nineteenth century. They may be well-funded, but they are not well-educated.

Their promiscuous use of the word Technik exposes the shaky foundation of their enterprise—as well as of many popular discussions about technology, which inevitably gravitate toward the bullshit zone. To return to Harry Frankfurt, the key distinction between the liar and the bullshitter is that the former conceals “that he is attempting to lead us away from a correct apprehension of reality,” whereas the latter conceals that he is not interested in reality at all. The bullshitter “does not care whether the things he says describe reality correctly. He just picks them out, or makes them up, to suit his purpose.” To suggest that Parag and Ayesha Khanna—and numerous pundits before them—might be pursuing purposes other than describing—or improving—reality is almost self-evident. (A look at the website of the Hybrid Reality Institute would suffice.) The more interesting question here is why bullshit about technology, unlike other types of bullshit, is so hard to see for what it is.

It is here that the Khannas stand out. Technik, as they use this term, is something so expansive and nebulous that it can denote absolutely anything. Technik is the magic concept that allows the Khannas to make their most meaningless sentences look as if they actually carry some content. They use Technik as a synonym for innovation, design, engineering, science, mastery, capital, the economy, and a dozen other things. It is what fixes cities, reinvigorates social networking, and grants us immortality. Technik is every pundit’s wet dream: a foreign word that confers an air of cosmopolitanism upon its utterer. It can be applied to solve virtually any problem, and it is so abstract that its purveyor can hardly be held accountable for its inaccuracies and inanities.

Of course, any discussion of embarrassing ddulite hype will include an inevitable section on TED Talks,,,

I can surmise why the Khannas would have wanted to write this book, but it is not immediately obvious why TED Books would have wanted to publish it. I must disclose that I spoke at a TED Global Conference in Oxford in 2009, and I admit that my appearance there certainly helped to expose my argument to a much wider audience, for which I remain grateful. So I take no pleasure in declaring what has been obvious for some time: that TED is no longer a responsible curator of ideas “worth spreading.” Instead it has become something ludicrous, and a little sinister.

Today TED is an insatiable kingpin of international meme laundering—a place where ideas, regardless of their quality, go to seek celebrity, to live in the form of videos, tweets, and now e-books. In the world of TED—or, to use their argot, in the TED “ecosystem”—books become talks, talks become memes, memes become projects, projects become talks, talks become books—and so it goes ad infinitum in the sizzling Stakhanovite cycle of memetics, until any shade of depth or nuance disappears into the virtual void. Richard Dawkins, the father of memetics, should be very proud. Perhaps he can explain how “ideas worth spreading” become “ideas no footnotes can support.”

So much BS, so little time.


Friday, June 6, 2014

The near miss effect -- what compulsive gamblers and tech reporters have in common

A few days ago I posted a bit of a rant about how excited tech reporters got over a Google press release about the company's driverless car. The problem was that, based on the details available in the reports, there didn't seem to be any significant indications of increased functionality.

Of course, reporters have a strong incentive to see signs of progress -- "just around the corner" sells better than "don't get your hopes up" -- but I think this eagerness has more than one cause (most things do) and I wonder if one of those factors might have something to do with the near-miss effect as described in this memorable story from This American Life:

Sarah Koenig

Habib and especially Dixon have spent a long time studying what's called the near-miss effect. In slot machines, a near miss is just what it sounds like. It's when, say, two cherries line up on the payoff line, and then the third is about to come but stops just short or just past the payoff line.
...

Sarah Koenig

In 2006, Dixon teamed up with Habib to see if they could figure out what was happening to people neurologically when they saw near misses. They scanned the brains of 22 gamblers-- 11 addicted, or what they called pathological gamblers, and 11 non-pathological gamblers-- as all these people watch near misses on slot machine displays.
The results surprised them. Because while both addicted and non-addicted gamblers said the near misses felt more like wins, their brains said something different. Here's Reza Habib.

Reza Habib

What you see in the non-pathological gamblers is that the regions that are activated for losses, those same regions tend to be also activated for near misses. And so the brain, at least, processes these near misses in the same way that it processes losses in the non-pathological gamblers. In pathological gamblers, the same regions that are activated for wins are also activated for near misses.
And so these include regions such as the amygdala, which is a region involved in emotional processing, as well as parts of the brain stem which are involved in reward and dopamine function, which is part of the reward system. So the pathological gamblers, their brains, at least, are responding to these near misses in the same way that they respond to wins.

Mark Dixon

This is Mark again. And one of the effects of this, or the implications of these data, are that a pathological gambler going into the casino who's actually losing, his brain is firing like he's winning. Disturbing, isn't it.

Sarah Koenig

Yeah. It's crazy.

Mark Dixon

Oh, it's way crazy. And so you are experiencing those same sensations as a win when you're not winning.

Just as casinos are very good at eliciting the reactions associated with winning even when very little winning is going on, companies like Apple and Google have become very good at eliciting the reactions associated with technological progress even when the technology is advancing little and sometimes not at all. In this case, Google assumed correctly that, by showing journalists a prototype that looked different but apparently did nothing new, the reporters would react as if they had seen an advance in the technology. They respond to these meaningless press conferences in much the same way as a pathological gambler responds to two cherries out of three.

If anything, the shift to custom-made, low-speed cars would seem to be a sign of trouble. Google's stated goal is to release this technology to manufacturers in 2018. Whenever you're designing complex systems that have to work with complex systems designed by others, compatibility is usually more than half the battle. I would therefore expect some of the most daunting engineering challenges to come from getting Google's technology to work smoothly with a wide range of makes and models. The decision to go from road testing Toyota Priuses ('Prii' believe it or not) and Audi TTs to track testing what are basically go-carts does not make the four year goal look more likely.

What happens if that deadline isn't met? I suspect it will still be business as usual. Google has proven that merely symbolic progress or, failing even that, just bringing the subject up is enough to create the desired effect of public perception. My guess is that the only real deadline is beating GM, Mercedes-Benz, or Nissan or any of the other companies that have equally gifted engineers working on these problems (but with less gifted PR departments to promote them).

Saturday, May 19, 2012

Adam Frank is better at science than business

This is Falcon 7, not Falcon 9


Astrophysicist Adam Frank is what you might call a fan of SpaceX:

So what's the big deal? Well, the Falcon 9 is a private spaceship, fully developed and owned by the private company SpaceX. And SpaceX is the brainchild of Elon Musk, the Internet billionaire who made his fortune from PayPal. With contracts from NASA to develop new launch platforms, SpaceX and other companies are poised to make space the domain of profitable businesses. And Musk has been explicit about his intentions to go beyond Earth orbit, to build commercially viable ventures that might take people to Mars in a decade or two.

His timing couldn't be any better or any more urgent. Even without the space shuttle, America needs to remain a leader in space. Now, when I was a kid, the U.S. space program fueled my imagination and led me into a life of science. But as I got older, it became clear that the real business of getting a human presence across the solar system was going to have to fall to business. Governments might get the exploration of space started, but the vagaries of election and budget cycles meant they could never go further.

Now, we've reached the point where it's the exploitation of space that matters. And while exploitation might seem a dirty word to some folks, they should stop to consider how dependent we are already on the commercialization of that region of space we call low earth orbit. Think of the billions of dollars in commercial activity tied to weather prediction, global broadcasting and global positioning. All this business depends on satellites orbiting overhead right now.

But if, as a species, we want to go beyond the thin veil of space directly overhead, then the basic principles of private venture and risk will have to apply. These are the ones that have always applied. While Queen Isabella may have given Columbus his ships to cross the Atlantic, it was private companies that built the seagoing trade routes and brought folks across to settle - for better or worse. Likewise, it's only through commercially viable endeavors that large numbers of humans are getting off this world and into the high frontier of space.

It's no small irony that the billionaires bankrolling the new space entrepreneurship built their fortunes not in jetfighter aerospace manufacturing but in the dream space of the Internet.
Frank's enthusiasm is understandable but his thinking about the business and economics of space ranges from the wishful to the hopelessly muddled, particularly when it comes to "the basic principles of private venture and risk."

Private space travel has not, if you'll pardon the phrase, taken off in a serious way because there is no credible business model to support it. No one has figured out a way to make money going beyond earth's orbit and until we see a major technological breakthrough, it's likely that no one will.

There's an important distinction that needs to be made, the economic forces Frank is alluding to only come into play when markets efficiently allocate resources where they will have the greatest return (and the markets have decided that doesn't include trips to Mars). What we're talking about here is having the government contract with an independent company. We can discuss the wisdom and practicality of that decision later, but claiming that this "the basic principles of private venture and risk" are behind SpaceX is like claiming that the hiring of Blackwater meant that the markets decided we should invade Iraq.

To salvage the Columbus analogy, before he returned with information about the existence and location of the new world, people didn't attempt voyages because the expected return on investment was negative. After people had that information the expected return was positive.

Giving some contracts to companies like SpaceX might be a good idea (that's a discussion for another time) but it will do virtually nothing to shift the economic fundamentals.

There are things that the government could do to improve those fundamentals -- research initiatives, mapping out resources, setting up infrastructure (ground and/or space based)* -- but they require lots of upfront money. Our only other option is to wait for technology to bring the costs of launching materials way down, but that is likely to take a long time.

When it comes to the exploration and exploitation of space, those are our realistic choices.



* This is a topic for another post but aerospace researchers are exploring some technologies that could shift those expected returns from negative to positive, such launching components and supplies by railgun.