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    November 05

    Thomas Jefferson on Health Care

    I think now would be a good time to let one of our founding fathers weigh in on the healthcare debate:

    "I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them."
    Thomas Jefferson

    July 19

    How did life ever come to be?

    Global warming alarmists would have us believe that a doubling of atmospheric carbon dioxide from current levels around 350 PPM (parts per million) would be the end of life of life on Earth as we know it.  I'd like to take a look at this claim in the light of what one could call "planetary common sense".

    Our atmosphere is roughly 79% nitrogen and 21% oxygen, plus trace gasses.  If an alien race were to look at this composition, it would be apparent that life exists, because that much free oxygen could not exist in the atmosphere unless some process outside of the normal entropic chemical reactions were occurring.  There are just too many things that like to bind with oxygen, and without life the presence of free oxygen in the atmosphere would be minimal.

    Science tells us that the road to life on earth as we know it started with the evolution of photosynthesis in primitive blue-green algae, which ultimately transformed our atmosphere by converting carbon dioxide, water, and sunlight into simple sugars and oxygen.  The algae got the chemical energy and building materials it needed, and our atmosphere got oxygenated.

    Now here's the rub - to generate the current levels of oxygen, there must have been at least 21% carbon dioxide in our atmosphere prior to the evolution of photosynthesis.  It was likely much higher, when one considers that much of the carbon in the incredible biomass of our planet came from the sequestration of carbon from our atmosphere.

    To put this in terms of the roughly 350 PPM of carbon dioxide in our atmosphere today, at one time there was at least 210,000 PPM of carbon dioxide in our atmosphere!

    How could life have ever have come to be if this planet was such a greenhouse?
    March 03

    An epic day of diving

    As a scuba instructor, it never fails to amaze me that there is hardly a day of diving that does not hold something new - some new creature, new behavior, or just seeing something in a new way.  Then there are days that just seem full of discoveries, as this last Sunday at Ana Capa Island.  We did three dives off of the Raptor, out of Ventura Harbor, the last dive at Ana Capa's East End, a dive site that is closed to divers most of the year due to the currents that flow around the point.

    Normally I make note of items that made a dive special in my dive log, but this time around there simply was not enough room.  Oh for want of a camera on this journey!  For lack of room in my log, I figured would immortalize this dive here.  Some of the things I encountered:
    • Lots of seals at all three dive sites, and both seals and sea lions frolicking at the East End.  Usually I see one or the other, as they are territorial, but here they seemed to be okay with each other.
    • Talk about freindly seals - on the second and third dives I had seals come right up against me and look in my eyes from inches away.  They didn't seem to want me to leave, either... as I tried to depart the East End and swim back to the boat, three times I found my progress impeeded by a seal attached to one of my fins!
    • At the first dive site, The Caverns, there must have been hundreds of halibut fry.  They are always a cool surprise, they blend in perfectly with the sand untill they move, by oscilating their body, which is basically one giant fin.  Rarely do you see more than one at a time, though... seeing a half dozen or more at a time taking off was something to see.
    • At Caverns there were hundreds of molts laying in the sand from some sort of crab I have never seen before.  It had an elongated body like a mole crab (also known as the sand crab, found at beaches everywhere), but was around 3 inches long and an inch wide, and had at least one claw, which the mole crab lacks.  I didn't see any live specimens, I'll have to keep an eye out for this critter in the future.
    • Lots of invertabrate life at East End:
      • Many large colorful anemone, including a variety I had previously not seen, with multiple shades of purple crowned with tips of crimson.
      • A white sea cucumber with orange bristles, which I have seen on previous occassions, but had never seen feeding.  Beautiful plumage!
      • A couple of the largest hermit crabs I've seen, wearing large turret shells.  This is the first I've seen hermit crabs at Ana Capa, the only ones I've seen in the Channel Islands were at Santa Cruz, and always at night.
      • I've seen sea hares (picture a bulbous slug with big floppy rabbit-ear-like appendages) in different colors - black, green, brown - but never one in a deep crimson red before.  I was so entranced I laid in the sand in front of it for several minutes, until it started to crawl onto my mask!  I kept wondering if another diver might mistake me for unconscious and try to rescue me Open-mouthed
    Ah, another great day in the chilly Pacific!
    November 14

    David Bellamy says it all

    I couldn't spell it out better than this guy has here:

    "BBC SHUNNED ME FOR DENYING CLIMATE CHANGE"
    October 20

    What's the Plan?

    In a speech on Sunday, Joe Biden told supporters to expect a major international crisis within the first six months of Obama's administration, and tells them to expect that unpopular decisions will have to be made that will be right in the long run.  He said he can "give at least four or five scenarios from where it might originate", and talked about the Middle East, Russia, and a Pakistan "bristling with nuclear weapons".  This when his running mate has several times talked about taking military action against Pakistan.

    The same day, Colin Powell announces his endorsement of Obama.  Powell, who was so instrumental in selling an unpopular war against Iraq... any bets on whether he might become Obama's Secretary of State, to help sell whatever new agenda is in the pipeline?

    Here's a neat bit of "logic" from Biden's speech:

    "There are gonna be a lot of you who want to go, 'Whoa, wait a minute, yo, whoa, whoa, I don't know about that decision'," Biden continued. "Because if you think the decision is sound when they're made, which I believe you will when they're made, they're not likely to be as popular as they are sound. Because if they're popular, they're probably not sound."

    Hmmm, so popular decisions are not sound, and sound decisions aren't popular... sounds like "we know what's good for you, get ready to take your medicine".  He also talks about how decisions will be made that are sure to cause low ratings in the polls a year from now.  This sounds to me like they've already got things planned out, and they know they won't have the support of "we the people", while making the assumption that the populace would not support the decisions they feel are "sound" and necessary.  Does this sound like democratic representation to you?  Just what are they planning this time around??

    August 27

    Carbon Accountant Speaks Out

    Another skeptic to man-made global warming steps forward:

    http://www.theaustralian.news.com.au/story/0,25197,24036736-7583,00.html
    http://mises.org/story/2571

    This from David Evans, who describes himself thus: "I DEVOTED six years to carbon accounting, building models for the Australian Greenhouse Office. I am the rocket scientist who wrote the carbon accounting model (FullCAM) that measures Australia's compliance with the Kyoto Protocol, in the land use change and forestry sector."

    Talk about crossing over the line!
    May 31

    Global Warming vs Entropy

    The introduction to Earth’s Energy Imbalance: Confirmation and Implications begins:

    Our climate model, driven mainly by increasing human-made greenhouse gases and aerosols, among other forcings, calculates that Earth is now absorbing 0.85 T 0.15 watts per square meter more energy from the Sun than it is emitting to space. This imbalance is confirmed by precise measurements of increasing ocean heat content over the past 10 years.

    From there, a number of conclusions and observations are made about the implications on climate change, including this colossal leap of logic:

    The present planetary energy imbalance is large by standards of Earth’s history. For example, an imbalance of 1 W/m2 maintained
    for the last 10,000 years of the Holocene is sufficient to melt ice equivalent to 1 km of sea level (if there were that much ice) or raise the
    temperature of the ocean above the thermocline by more than 100-C (table S1). Clearly, on long time scales, the planet has been in energy
    balance to within a small fraction of 1 W/m2.

    Now, I had started to write this massive blog post picking at numerous issues I had with the supposed validity of the supposed energy balance value, when it struck me that this paper seems to totally forget about one of the most powerful forces in the universe: entropy.  That is, the tendency of matter to tend towards a state of inert uniformity.  And if it weren't for the complex chemical, weather, geological, and biological mechanisms at work on our planet, it would be just a hunk of rock with nothing happening, same as it was yesterday and the day before.

    But that's not the case here on the third rock from the sun!  Lots is going on, and it takes energy for that to happen, for mountains to push up, for water to rise and fall, for trees to grow, you name it.  Energy is stored chemically in proteins built by every living cell, as potential energy every time something is place on a shelf, and these are all forms of "usable" energy that allow our world to be such a dynamic place.  All of these things reduce the entropy of the system, and it takes energy to do that!

    So when he figured that an "energy balance" retaining one watt per square meter from the 1350 that come our way from the sun would boil away the oceans, did anyone first try to figure out what the "energy budget" of the planet might be?
    May 28

    Godzilla can't be far behind

    Giant jellyfish weighing up to 450 pounds are causing problems for the Japanese fishing fleet!  No, it's not a Japanese horror movie, it's for real:

    National Geographic Article
    http://news.nationalgeographic.com/news/2006/01/0119_060119_jellyfish.html

    Another site with some pics of these beasties
    http://www.pinktentacle.com/2007/11/return-of-the-giant-jellyfish/

    March 06

    How deep does this rabbit hole go?

    Now this is scary!  If you haven't read my previous post, take a minute to scroll down and read it, so you know the background of this.

    I found the following in PRA's 2006 SEC Filing :

    "Our July 29, 2005 acquisition of the RDS business from Alatax, Inc. further broadened the services we can offer to debt owners and local governments."
    .....

    "RDS collects delinquent taxes and earns a contingent fee. This fee can vary based on the age of the debt being collected. RDS also processes tax payments for taxing authorities. For this work, they are paid a per transaction fee. RDS also performs tax audit services, for which they are paid at an hourly rate. RDS provides local, state and federal governments a range of revenue enhancement services including revenue administration, revenue discovery and recovery, aged receivables management and compliance auditing."

    So, they bought up a company that the government outsources to for tax auditing and collection... then they start sending out 1099s to a large portion of their portfolio that they can't collect from, potentially causing those people a tax nightmare.  Any bets as to whether RDS might reap the benefit of this....Enron, here we go again....


    Wow what a scam!

    Well, the junk debt buyers are at it again - they've dug up a charge-off from a bank back in 1990, which I actually paid in full with interest back in 1998 so that I could open a new account with the same bank.  Looking into this particular company, I find they are doing some real nasty things:

    Ripoff Reports - Portfolio Recovery Associates

    Among other things, they are filing 1099-C forms with the IRS reporting debts as forgiven, effectively claiming them as income you are liable for.  They have also been known to re-age accounts, and I found one unauthorized credit check a couple of months ago that was from them, before I knew what they were about.

    One of the people who wrote a report at the site above asked an interesting question: "Why would a company file an IRS form as a 'bluff'?"  Actually, I think I see a rather devilish pattern here, given some data points gathered about them on the web:
    1. According to their own web site (http://www.portfoliorecovery.com/about.asp), they have acquired over $24 billion in debt portfolios.
    2. Looking through their SEC filing for last year, these have been purchased for an average of $0.02 on the dollar.
    3. For the purpose of accounting assets in their SEC filings, they value the portfolios they buy as assets based on the potential amount they can collect, not the actual purchase price.
    4. They are amortizing their portfolio over three years, i.e. the value of portfolios drop each year after purchase until they are valued at $0 at three years.
    It seems to me that they have quite the ability to play the numbers as they wish, in terms that best benefit their stock prices and their tax liability.  They purchase debts at pennies on the dollar, call them an asset worth many times that, then deduct the entire inflated value from their taxes over the next three years.  The sudden flurry of 1099s to a large number of debtors (which seems to have just popped up in the last couple of months, or at least greatly increased) makes me wonder if they are trying to write off some portion of their portfolio's projected value before the end of the tax year, to dodge a big tax hit.... meanwhile, a lot of us may be hit with a bill from the IRS....
    March 05

    Cute... but "Deadly"?

    Today the Drudge Report has this link:
    PAPER: World's smallest gun that fires deadly 300mph bullets?

    Cute little gun, made by a Swiss company - for 6300 Francs (around $6000 US) you can get the world's smallest revolver, 5.5cm long (just over 2 inches), firing the worlds smallest rimfire ammunition (2.34mm, or 0.092126 caliber) at 10 Francs per round.

    But it's illegal in the United States, because it doesn't meet minimum barrel length requirements.  And the hyperbole in the article is pretty incredible.  First it starts out describing this as a lethal weapon:

    "The general threshold for perforating the skin is about 330 feet a second.  Apart from bone, skin offers the greatest resistance to penetration. If it can pass through the skin it is potentially lethal, even if the bullets are small.  If you shoved something 3mm across into someone's chest you could kill them. It's the same with these bullets, they could penetrate the heart." As the manufacturer points out, though, the energy produced is less than one tenth that of an air rifle:
    http://www.swissminigun.com/ammunition.html

    In fact, looking at the weight of the projectile in question (0.12 grams), it has no more mass than a soft-air BB, which generally range from 0.12 to 0.2 grams.  I've personally been hit by more than my share of those, at velocities up to 400 fps, and have only had a couple of occasions where any blood was drawn.  The cross section with these bullets is smaller, but if someone shot me with this little revolver, I think I would be inclined to ask them to stop it...

    But they go way further with this:

    "Jonathan Spencer, consultant forensic scientist and firearms expert, said that although the gun, which fires bullets at a speed of 399 feet a second, was tiny, it could still prove fatal and in the eyes of the law was as dangerous as a machine gun."
    "It is capable of killing someone. Under section 5 of the Firearms Act it would be a prohibited weapon. It would be on the same scale as a machine gun."


    For some reason, I have trouble fathoming this comparison:


    Machine GunSwiss Mini Gun
    Capacity30+ rounds6 rounds
    AmmunitionHigh power military roundsSomewhere between SoftAir and BB gun?
    Fire Rate600-1500 rounds per minuteSomewhere around 2 seconds per round?
    TargetingTactical sites, laser sites, scope, etcPeer over miniature sites set about 1.4" apart

    Strangely, when you look at the company's website about export restrictions, you find that Canada's strict gun laws allow import, considering it to be "not deemed a firearm".  Yet here in the U.S., where a wide range of firearms are readily available, we go on high alert over this:

    "In September 2006 the Bureau of Alcohol, Tobacco, Firearms and Explosives(ATF) in New York issued a warning about the gun after being alerted by a police officer who spotted it on a website.  Special Agent William McMahon said the gun was so small it could pass for a key fob, and warned it made the perfect stealth weapon for serious criminals." Ummm, ya, a seriously retarded criminal, in my opinion - one that would be willing to spend around $6,000 (more, on black market, I'm sure) for a gun that could only possibly have any effect at point blank range, and even then might do little or no harm.... it would seem to me that a simple shank would have far more predictable results.

    I think someone has been watching too many James Bond movies.....

    January 22

    Hand draw your own holographs!

    This paper examines a phenomenon that can cause abrasions in a surface to reproduce holographic images of the object that abraded it:
    http://amasci.com/amateur/hand1.html

    What's really neat is the method they demonstrate, which you can use to carve holographic images into a plastic sheet using nothing more than a compass and a bit of patience!
    January 11

    Junk Debt Collectors

    Yesterday I felt pretty vindicated - I got a call from a collection agency, and made THEM hang up on ME in ten seconds flat!

    I was able to pull this off because I know my rights, and I know their "wrongs".  This particular collection agency, along with a string of others over the last couple of years, are practitioners of "junk debt collection" - these bottom feeders buy up old debts that can no longer legally be collected, at pennies on the dollar, then set out to harass payment from you.  They will call you day after day threatening legal action, threatening your credit, etc, when in fact they have no legal recourse whatsoever because these are debts that are beyond the statutes of limitations both for civil suit and credit reporting.  They will also try to impress upon you that you must make a payment immediately to avoid these dire consequences, and therein lies the trap... they'll take anything, anything at all, as a show of "good faith" to keep them from dropping the hammer on you.... but as soon as you agree to make one thin dime of payment, WHAM!, the debt (including whatever massive interest and penalties they may be claiming for a decade old debt) now becomes a legal obligation that they CAN sue you for!

    In my case, we are talking about a department store credit card that I defaulted on back in 1989 with a few hundred dollars outstanding.  A couple of years later I made an effort to make payments to a collection agency for the debt, but things were tight and I stopped paying them before it was completely payed off.  According to the statute of limitations in the state of California, you cannot be held liable after seven years from the date of last payment or agreement.  I didn't hear about it again till about six months before the statute ran out, but I just avoided them and they went away.

    Until one morning in 2006, when I was woken by a phone call from a very aggressive fellow, who claimed that he had a judicial summons ready to send out to *** Xxxxxxxx St in Spokane Washington, if I was not prepared to send an immediate payment towards my outstanding debt.  I was rather incredulous, and I explained to him that it was beyond statute, at which point he claimed that I had made payments to his office back in 2002.  I hung up on him without bothering to explain that I had not lived in Spokane for over 20 years! (ya, sure you dealt with me in 2002 - maybe he should have looked up the area code we was calling before making that bluff).  For the next two weeks he kept leaving messages on my answering machine, several per day, to the effect of "This message is for Robert Dunlop, regarding a impending legal action, please have him or his attorney contact me immediately".  The first calls were all fire and brimstone, but by the end it was more like "hi... this is so-and-so... calling for robert dunlop....".  He knew he had lost the bluff.

    I thought that was it, until a month later I got a letter from another collection agency, which by the way had inflated the debt to over $9,000, and subsequent calls.  I politely told them where to go, and advised them not to call again unless they wished to face harassment charges, and they didn't call back.  Then the next month, yet another, and another, and that's how it's been since then.  It seems they must trade these debts between each other like trading cards, and as this list shows there are a lot of them out there today: http://www.credit-repair.atomicshops.com/junkdebtbuyers.html.  Give me a few more years, and maybe I'll have told them all off Sarcastic

    January 04

    The value of a life according to the EPA

    On page 38 of http://www.pewclimate.org/docUploads/Market_Consequences-report.pdf there is an interesting bit of information on how bureaucrats at the EPA evaluate the cost vs benefit of potential policies:

    "In assessing the benefits and costs of U.S. environmental policies, EPA uses a value of a statistical life (VSL) saved that is drawn from a survey of the literature on willingness-to-pay for avoiding a premature death or for an additional life-year. The survey covers numerous research efforts with estimates (in year 2000 U.S. dollars) ranging from a low of $1.0 million to a high of $21.7 million. An estimated distribution of these research estimates has an average or mean value of $7.7 million and a standard deviation of $5.1 million. EPA uses this mean value of $7.7 million as the value of a statistical life saved or lost due to the presence or absence of a particular policy."

    So if I'm reading this right, the average person would be willing to spend $7.7 million to extend their life one year, and that this is the basis for determining the cost effectiveness and relative impact of environmental policies?  I hope the EPA never has to save us from a real threat - they could rationalize spending the entire GDP of the U.S. to save 0.4% of its population!

    Maybe I sound callous about this?  What is the value of a human life?  The problem in putting such a number to it, though, is the abuse of power it enables, because it makes no economic sense.  We're talking about a theoretical value man-year of life that would take the average wage earner around 250 years to earn!  How can we as citizens possibly bear the level of financial burden that could potentially find license in such reasoning?

    December 16

    What will become of Santa's Workshop?

    With "news" predicting that at the current rate the North Pole may completely melt as early as 2010, will Global Warming steal Christmas??
     
    Generally I try to keep my web-facing side from being too political, but over the last year I've been resisting an urge to use this blog as a soap-box for global warming.  And while I've made a few comments here, until a couple of nights ago I had kept myself from entering into any online discussion of the topic.  I was browsing through various articles on the subject when I came across a somewhat flame bated comment that started off like this:
    Yep, Michelle, Global Warming is a hoax, sure…….Why can’t you conservative windbags get around the fact that this IS NOT a poltical issue?? In the past few years in the US, we have witnessed a Tsunami that virtually wiped out a city , fires that are destroying much of the West Coast, a record number of Tornadoes [clip]
     
    Quoted from:
    I cut off there because that's as far as I got into his post (which degreades from there) before the twitch that started at the word Tsunami turned into an uncontrollable surge towards the "Submit Comment" button.  Normally I wouldn't bother with someone who acredits a seismic tsunami to climate change, but this guy just got on my last nerve, and I had to scratch that itch.  I find a real irony in that he seems to be refering to the tidal waves that hit the small town of Crescent City and did a bit of damage in the harbor, when a couple years ago whole island nations clean off the map.  It would seem nothing that happens outside of the U.S. gets this guys attention, who thinks he's up on what's happening globally.
     
    Here's my reply, which was originally posted on the link provided with the quote above:

    Keef, I assume you are referring to the Tsunami that hit Crescent City? That was minor compared to the one that hit the same spot in 1964 - no deaths vs 122 in 1964, $700,000 in 2006 dollars vs over $7 million in 1964 dollars. I used to live in Crescent City, there are still boats and anchors along the 101, well inland of the shore.

    But that’s not the point…. the real question is what this has to do with global warming, as it was caused by a 8.1 earthquake off of Japan, in the Ring of Fire, an area historically known for great seismic activity. Blaming this on global warming is exactly the kind of alarmism that takes this out of the realm of science and into the the realm of junk science, fear mongering, and yes, politics.

    Something to realize about a “record number of tornados”, the correct statement would be a “record number of observed tornados”. Previously remote areas areas are populated more now than ever, and even where there isn’t a trailer park for one to hit, doppler radar has allowed us to detect tornados that would previously never have been recorded. But even given that, if we take a look at the tornado records you’ll find what you are saying is not true:
    http://en.wikipedia.org/wiki/Tornado_records

    In fact, here’s a record set this last year: “Before the Greensburg EF5 tornado on May 4, 2007, it had been 8 years and one day since the US has had a confirmed F5 or EF5 tornado. The last confirmed F5 or EF5 hit southern Oklahoma City and surrounding communities during the May 3, 1999 event”.

    As for the West Coast burning down, I’ve lived here for most of my 39 years, mostly in southern california, and it’s an accepted norm that we get hit by firestorms every 2-3 years. The only difference now is that more and more people are building houses in mountainous suburbs, so there is a lot more property damage potential than ever before.

    Sorry, not all things can be blaimed on global warming,

    Yep, I really did end that with a comma
    December 13

    The Pope speaks out on global warming

    Wow, the Pope himself has spoken out about global warming alarmism!
     

    Pope Benedict XVI has launched a surprise attack on climate change prophets of doom, warning them that any solutions to global warming must be based on firm evidence and not on dubious ideology

    The leader of more than a billion Roman Catholics suggested that fears over man-made emissions melting the ice caps and causing a wave of unprecedented disasters were nothing more than scare-mongering.

    At a time when popular exposure to only one side of the debate has become pre-ordained, it is good to see this... the media and the environmental movement attack and supress anyone who brings any contradictory evidence to our attention, but the Pope might be harder to ignore.  I say that, but I've yet to see this story covered by network news...
     
    Ironically, a search for other articles yielded this account from earlier this year, when the environmental movement thought the they had the pope in their pocket:
     
    October 01

    What to ban next?

    The other night I was watching a local news station and they announced a bill banning ozone generating air cleaners in California.  I am not sure if this effects the Ionic Breeze air cleaner that I use, I'll have to check into that - but this is not what set me to blogging.  What got me was what came next - a web site adress popped up on the screen and the announcer encouraged viewers to go to the web site to "tell us what you would like to see banned next in California".
     
    Is it just me, or is there something fundementally wrong with this question?  Now, I will grant that ostensibly there may be bans that have saved lives or have some other benefit, although in my current frame of mind I can't think of any.  By its very meaning, though, a ban restricts certain rights.  So one might instead ask "What rights do you think California should take away next?"
     
    How about a ban on bans?  We could call it... oh, I don't know... the Constitution?
    September 28

    Internet Speed Test

    Recently I updated the internet connection to my home internet to RoaRunner business class at 10mb/s down and 2mb/s up, man it's nice! One thin I have learned about fast connections, though, is that you still can only as fast as what you are connecting to, and a fast connection sometimes just serves to show how little bandwidth some servers offer you.
     
    What's annoying is running some of the internet speed tests that are out there and having trouble finding a server that I can max out on.  I came across a couple, the highest bandwidth coming from GoDaddy, which is no surprise.  Then I came across this cool test:
     
     
    Not only do hey have the speed they've got the coolest speed test interface I've seen yet, done up in Flash.  Worth a look.
    December 29

    Man takes flight

    Now this gives a new meaning to the term "manned flight"! 

     Yes, that picture is for real.  Visit his web site for more:

    http://www.jet-man.com/actuel_eng.html

    Alive in the vacuum

    Last year the Foton-M2 mission of the ESA sent a number of experiments into space, then returned a capsule to earth to be recovered.  One of the experiments exposed two species of lichen to the vacuum, radiation, and temperature extremes of space for 14.6 days, and they both survived without any aparent harm!
     
     
    This would seem to make it apparent that such lifeforms could survive in an environment such as that on Mars.  Whether they could do well enough to propogate might be another story, though; simply surviving for the moment does not mean long term survival of a species.
     
    While lichen is able to survive in a wide range of extremes, most lifeforms depend on a much smaller range of environmental parameters.  Questions about other life in the universe often resolves around whether ideal conditions for life exist elsewhere in the universe.  The thing is, we base these conditions on what is condusive to the existance of lifeforms that exist here on earth.  When I think about the possibility that there is intelligent life elsewhere in the universe, and that they may be searching for other forms of life as we are, I have to wonder if they might overlook earth for similar reasons, for reasons such as it being too hot or cold, or maybe something like "nothing could survive with such high levels of oxygen, they would burst into flames".