Kamis, 30 Juni 2011
Is space exploration over?
The Economist has an article about how the age of space exploration is over. They are a little late on this announcement, as the peak distance that any human has traveled from Earth was reached about 40 years ago. The first age of space exploration has been over for a while.
But does that mean that our adventures in the Final Frontier are over forever? I'm not so sure. After all, think about maritime exploration. For thousands of years after the first canoe was launched, the high seas remained basically empty of human ships. Once we got the technology to conquer the seas, however, we quickly did so.
What technology would be needed to conquer space? It's clear that what we use now is too expensive for large-scale use. To reduce launch costs from Earth, we need either mass drivers, laser propulsion, or something of similar energy savings (a "space elevator", sadly, will probably never exist).
But we need more than that, because even with cheaper launch systems, manned space exploration is extremely expensive, especially given the radiation shielding and other add-ons that we'll need for interplanetary travel. What we need is a bigger, better energy source. With the Earth energy-constrained as it is, there are no fossil fuels to spare for Mars missions, and we'll be lucky if we get renewables to the point where they save us from backsliding to the iron age. That means that we need nuclear fusion.
But in addition to the means, we need a reason to go. What is in space that we can use? Well, if fusion becomes a power source, we might want to mine tritium from other planets. And with fusion, terraforming of Mars might one day be possible (fusion is really that good as an energy source!).
As for interstellar travel, that is really and truly off the table without technological breakthroughs so advanced that we currently can barely imagine what they are.
So basically, no fusion, no space adventures. But if we do invent fusion, then the whole equation changes, not just for space travel, but for every conceivable human activity. Hence, we should focus our engineering efforts not on manned space travel, but on fusion power. And if we ever succeed, then the Second Age of space exploration may begin, and the Economist's article may come to look as silly as those medieval assertions that the Atlantic could never be crossed.
Rabu, 29 Juni 2011
Child Booster Seats
The institute for Highway Safety has provided a method to take much of the guesswork out of selecting the proper booster seat for your child. Seat belts are designed with adults in mind- so a child booster seat is an absolute necessity, and extra care needs to be taken when securing young children.
Children usually resist wearing a seatbelt because it is uncomfortable. Boosters elevate children so that the safety belts installed in the vehicles by manufacturers will fit the child better. The booster seat allows the lap belt to fit properly over the child’s thighs and not their abdomen. The shoulder belt should fit across the middle of the child’s shoulder. Not only will the belt be more comfortable, it will provide maximum protection in a crash.
The institute’s researchers used a specially designed test dummy configured as a 6 year old child. The researchers determined the effectiveness of how a 3-point lap and shoulder belt fit the dummy under a range of configurations representing many different automobile models. Based on a range of scores, a booster seat rating was assigned to each seat.
Selasa, 28 Juni 2011
Is education a public good?
How are schools public goods?
As a final note, I want to point out that this is just one more reason to be wary of the modern American libertarian movement. The philosophy has never had a good answer to the question of children's rights. And yet the question of whether or not the government and/or or your parents can make you go to school is of crucial importance to the wealth of nations...and hence of crucial importance to our ability to guard our future liberty against Tamerlane.
Update: Lots of EconLog love today. Arnold Kling asks why government needs to provide education instead of just subsidize it. My answer: No reason in principle, but in practice government contractors seem quite hard to monitor. David Henderson says that innocent kids shouldn't be sent to prison/school. My 12-year-old self certainly agreed with him...but society fears gangs more than it loves perfect child liberty. Henderson also asks why people are more willing to vote for public schools than they are to pay for them. The answer to this is simple: people gain a lot from other people's kids being educated, since systemic underinvestment in education makes the country as a whole much poorer (and thus lowers parents' real wages). So they agree to pay taxes to have their kids educated, as long as everyone else does so as well, and the net benefit they receive is far more than if only they themselves were paying to have their own kids educated. So government solves a coordination problem, similarly to the public goods case.
Jumat, 24 Juni 2011
When has stimulus ever been politically feasible?
In order to have successfully predicted that we would be where we are now, you would have to have predicted a large number of things:Get all of those 10 right, and you are a wizard.
- That a global savings glut and a period of low interest rates would produce a housing boom.
- That the housing boom would turn into a housing bubble.
- That the housing bubble would lead to a collapse of mortgage underwriting standards.
- That risk management practices on Wall Street would have been nonexistent.
- That the Federal Reserve would not be able to construct its usual firewall between finance and the real economy.
- That the Federal Reserve would not feel itself empowered to take the emergency steps to stabilize demand needed during and in the immediate aftermath of the financial crisis.
- That the incoming Obama administration would come out of the gate with too small an economic recovery package.
- That politics would prevent the Obama administration from being able to take a second bite at the apple.
- That the Obama administration would then give up on pushing the envelope of its powers to try to generate a strong recovery.
- That the intellectual victory of Keynesian approaches on the level of reality--forecasting and accounting for the course of the Little Depression--would be accompanied by a non-intellectual defeat of Keynesian approaches on the level of politics.
But I know of nobody who did.
The smart people I know--there imagination failed after number five or so.
Update: Mark Thoma points out that automatic stabilizers are generally politically feasible. That is certainly true.
Senin, 20 Juni 2011
Libertarianism and the Tamerlane Principle
At the news of the [up]rising, [Tamerlane] stayed his march into the mountains, and took a terrible vengeance...he showed himself to be a "hurricane of annihilation"...[H]e commanded cruelty and devastation such as made people shudder even in those cruel days...When he stormed the rebellious city of Sabzevar...he had 2,000 persons walled up alive, as a tower of horror "for a warning for all who should dare to revolt and as an indication of Tamerlane's vengeance"...The sword of the executioner made an end of the dynasty of Herat; the towns of the Sserbedars became heaps of ruin...The mountain cities, which defended themselves valiantly, were crowned with pyramids of skulls; and in the capital city...the inhabitants were put to the sword by the conqueror, "even to the centenarians, and to the baby in the cradle." Then the soldiers carried off everything "down to the nails from the doors"; and whatever was combustible went up in flames. City after city, fortress after fortress, fell into the hands of the conquerors, "until there were no more enemies left in these provinces, and no one who did not obey Tamerlane."
Update: Wow, Metcalf's essay really seems to have touched a nerve. Will Wilkinson: "If only a levee separated polite discourse from the sort of ax-grinding indifference to fairness and truth Mr Metcalf displays in his essay." Reihan Salam: "Alas, I have just had the distinct displeasure of reading a critique of Nozick that is, I’m sorry to say, neither provocative nor intelligent. I wish I could get those minutes of my life back." Tyler Cowen: "I agree with Reihan that the recent web critique of Nozick, which I will not link to, was just awful." And here's Jason Kuznicki with an actual rebuttal. But so far, no libertarian bloggers, to my knowledge, have answered the Tamerlane Critique. Can I have been the first person to think of this idea? It seems highly unlikely.
Jumat, 17 Juni 2011
In Japan.
Rabu, 15 Juni 2011
Kidproof
Some examples of their courses are:
Cybersafe which teaches kids how to safely use the internet. They teach them how to see warning signs and unsafe situations online.
Another course is all about avoiding being bullied or how to deal appropriately with a bully. The course is called Bully Proofing.
Their most popular class is the Babysitter Training course. This course helps kids develop the skills needed to take care of other children.
Knowledge and education are always a good defense against certain dangers. Kidproof’s classes are a great way for parents to help make children aware and educated on today’s dangers. Visit www.kidproofsaftey.com today.
Kidproof is always looking to expand to help get the word out to parents in different communities in
Senin, 13 Juni 2011
Obsessed With Adverse Selection
This discussion has heated up as policy-makers look ahead to 2014 when state insurance exchanges are slated to come on-line and they try to predict market conditions and that time. For PPACA supporters, there’s a lot riding on making sure the exchanges work as promised so they are taking aim at any real or perceived obstacles. Adverse selection drivers are at the top of the list.
We saw this first in the HHS Report on the Large Group Market, which was published in March. In the report HHS commented that if low attachment point policies in the reinsurance (read stop-loss) market become more widely available by 2014, a significant number of fully-insured employers with “low risk” employees will switch to self-insurance, therefore creating adverse selection in the marketplace.
This section of the report concludes that “these results highlight the importance of closely monitoring the availability and pricing of reinsurance (stop-loss insurance) and closely monitoring decisions made by small employers to self-insure.”
A working draft of a recent NAIC white paper on the subject of adverse selection also points the finger at self-insurance as contributing to adverse selection. The NAIC writes: “Employers with favorable risk demographics have an incentive to self-fund while those with less desirable risks would tend to opt for fully-insured plans either through the exchange or in the outside market.”
Neither HHS nor the NAIC acknowledges one very important fact as part of their analysis, which is that most companies with fewer than 100 employees simply do not know if their group is a good risk because claims data is generally not available to them. In this regard, their “premeditation” argument is compromised.
Now it’s true that employers that switch to self-insurance can often improve the aggregate risk profile of their groups over time, regardless of the baseline at the time of transition, through wellness programs and other innovative plan design strategies, but shouldn’t that be the objective of all group health plans?
Let’s also recognize the importance of the HHS comment about “closely monitoring” the stop-loss market as way to guard against adverse selection. As described in my previous blog posting, Treasury Department Gets Schooled on stop-Loss Insurance, federal regulators now have a keen interest in stop-loss insurance for a variety of reasons.
This new federal attention combined with the ongoing desire by state legislators to expand their authority over self-insured health plans creates a very uncertain environment for future legislative/regulatory activity that could affect the ability of small and even mid-sized companies to self-insure.
There’s one last development on this subject worth mentioning. Some key House Republican staffers have indicated a renewed interest in introducing association health plan (AHP) legislation, but are holding back because of anticipated criticism that self-insured AHPs would contribute to adverse selection. So the education process continues on multiple fronts.
Kamis, 09 Juni 2011
Pools and Insurance
The pool itself has coverage on your homeowner policy under Section I, Other Structures. Normally this coverage is 10% to 20% of the amount of insurance you have on your home. Let’s say you have your house insured for $200,000; under a typical homeowner policy you will have $20,000 in coverage for Other Structures. As a pool owner you need to ask yourself, is that enough to cover my pool if it was damaged? If not you may need to increase your Other Structures coverage.
Liability is always a big concern when a pool is involved. It is important for pool owners to know that many insurance companies require pools to be fenced. If they are not the pool owner may find their homeowner carrier canceling their insurance. So if you are someone that currently doesn’t have a pool but plan to add one, make sure to include a fence in your planning process.
Umbrella insurance policies are something we at Fey Insurance Services always recommend but if you are a pool owner we strongly recommend them. Unfortunately drowning is a real risk when you own a pool. Heaven forbid this ever happened at your pool but if tragedy did strike you would want to have all the liability coverage you can to help protect you.
So before you pull the winter cover off your pool, be sure to consult with your insurance agent and do a review of your homeowner insurance. Enjoy the summer!
Kamis, 02 Juni 2011
Homeowner Insurance in a Disaster
With all the devastation that is occurring in the country from tornados, home insurance has become a hot topic. More specifically, having the correct amount of insurance on your home has become a hot topic. A few weeks back we posted a blog article about a house's "Market Value" vs. "Construction Replacement Cost". Just a few days ago USA Today journalist Sandra Block posted a wonderful article in the Money section of USA Today on the same topic. Here is a link to this article:
Will Your Homeowners Insurance Cover You if Disaster Hits? by Sandra Block (June 1, 2011) USA Today