Friday, June 29, 2012

Pullups... Part of the Paleo Lifestyle

One book I highly recommend is Mark Sisson's 21 Day Total Body Transformation

In it, he suggests that men should have a goal of 12 pullups.  They are a key measure of upper body strength.  Also, at least when I say pullup, I mean palms facing away and not all that "swinging" or "kipping" or other tricks.  Nope, just raise and lower.  Simple.

Pullups are a weak area for some people, but I suggest that the only way to build up to doing12 is to do some during every workout, or at least quite frequently.  I do most of my weight lifting exercises on Mon, Weds, Fridays.  On the weekends, I tend to be out hiking in the Georgia mountains with my dogs.

Currently, my maximum is 13 pullups, but it did not used to be that way.  Well actually, it used to be better, and then it got slowly worse, and then it was horrible, and now I'm headed in the right direction.  Here's a short history of my life of pullups:

Age      Pullups
21          17     -  Was young, used to be a swimmer...
31            8     -  Look what 10 years of not doing pullups will do
37            3     -  Injured shoulder painful.  Learned about the Supraspinatus
45            13   -  Look what doing pullups in your workout routine can do after 18 months.

I keep a log of all my workouts, so the first graphs is monthly totals for the past year - An average of 389 pullups per month.  You'd think hitting 500+ pullups in a month would be easy... but it hasn't been that way for me.  Especially if you skip a day or two.

My inspiration for working out is Shana A. of Crossfit East Decatur.  I don't belong to her gym, but I do follow along on the facebook page and CFED Web Site.  Once I saw a workout where she must of have done >80 165 pullups in the WOD.  That's a ton in one short 20 minute period....

My goal by my birthday in August is a max of 15.  Who knows, I might even try to get to 17 by then.


This is the prior year - Average of 119 per month.  There were a couple months during this year that I traveled internationally, so I basically missed the whole month of November.



Thursday, June 28, 2012

Climate Central - A Failure in Graphics and/or Statistics

Recently, Climate Central issued a new report that discussed warming across the continental US over the past 100 years.  In this report, the graphics and commentary are extremely misleading.  For example, even though 1/2 of the state's climate trend did not meet statistical relevancy, the created every single chart as if it did.

In their original graph - note the "warming rates accelerated everywhere" title.  This is cherry picking of the data.  In fact, their statistically insignificant data showed that Alabama, Arkansas, and Georgia COOLED.  (Not that I believe it).  In one case, the "warming" was by 0.008 degrees.  Whew...  I'm fixin' to pass out!


Anyway, here is my revised graph using only the data that was statistically relevant (see footnote in table 3 of the report that you can download [Heat Is On Report].  If you're going to make a point, you have to use honest graphics.  So, yes, there is some real warming... but not in 1/2 of the states.


Next, they tried to show which states were warming the fastest.  Of course, the title of the chart uses the terms "10 Fastest Warming States" and "10 Slowest Warming States".    I corrected that for them, too.



Take a look... Last I heard, when something was declining in temperature, you don't call it warming.  There's another word for that.  Cooling?  Of course, since the data was statistically insignificant, why even create this graphic?

I'm a huge fan of Edward Tufte.  Visual Display of Quantitative Information  Whomever created the graphics for the Climate Central report really should find some of his work and use it to improve the way they display data.  As Tufte said in a seminar I attended, "Clear drawings are clear thinking..."  We could all use more of that.

Saturday, June 23, 2012

Comments on John Mashey's Pal Review and Skeptical Science (Part 3)

Lessons in Moderation / Censorship and Closed Minds on Skeptical Science 

These two topics are are quite closely linked, so we'll cover both in one post.  

Background

I have participated in probably a dozen or more on-line forums, and I've never once come across one that had so many editorial rules.  In fact, I can't recall having a single post blocked or edited in any forum, so this was a new experience for me.  I do realize that moderators have a purpose.  They can help keep the discussion on track, and they certainly should edit out profanity, random posts, advertisements, and other forms of spam.  

Rufus9 did not start off too well with the forum when he called Mashey's paper "3,000 wasted words" without providing a basis for that statement.  And, in retrospect, the words were not wasted.  As I have now more fully explained in the first post, I just think the words aren't all that valuable.  So, at first, the Moderator did his job correctly, and I think the censorship of my first post was justified.  Later posts seemed to have more and more arbitrary rules, somewhat designed to keep "outside ideas" from entering the forum, or so it seemed to me.

Reasonable Debate?

One area where the moderation of this forum seems to block reasonable debate is in the exclusion of information from other areas of science.  At one point, I received this warning from the moderator:
offer links to the supportive (climate science) literature to support your points, discuss the material raised by others to counter your previous assertions (which you have avoided doing) or concede them.
In response, I wrote something along the lines of:
"My views of science are broader than climate science and many of my references have been deleted..."
And the Moderator snipped that part of my response.   Wow.  In part, that was why I asked for a more full deletion of one of my posts, since the context of statement is very important when stating an argument.

Don't Use Analogies or Studies from Other Fields of Science

The Moderator and member of the forum were especially sensitive to commentary from other fields of science, such as critiques of the Peer Review process, or references to the field of medicine as an analogy. 
"As noted by others earlier, the field of medicine is not a good comp to that of climate science, for a variety of reasons."
For example, part of my argument about Mashey's paper is that it is analogous to an observational study in medicine - capable of producing a hypothesis, but not capable of showing causality.  Others in the debate then raised the case that sometimes these studies are helpful.  I agreed that they could be, and as support, I offered this quote from this article  by Gary Taubes.
"Moreover, this meat-eating association with disease is a tiny association. Tiny. It’s not the 20-fold increased risk of lung cancer that pack-a-day smokers have compared to non-smokers. It’s a 0.2-fold increased risk — 1/100th the size. So with lung cancer we could buy as a society the observation that cigarettes cause lung cancer because it was and remains virtually impossible to imagine what other factor could explain an association so huge and dramatic. Experiments didn’t need to be done to test the hypothesis because, well, the signal was just so big that the epidemiologists of the time could safely believe it was real."
As we can see, if you have a massive signal like that of the impact of smoking on health, then we might agree that we have causation.  What the Moderator left in was my following statement, with the context mostly destroyed:

"So, while some may see AGW as the 20-fold risk of smoking, there are credible sources who do not see it that way."
In my view, Mashey's paper does not even come close to producing that sort of 20-fold signal, so it is dangerous to imply causality from it.

They also clipped the following links that ARE within the bounds of climate science.

16 Scientists - No Need to Worry

Bob Murphy's Critique of Nordhaus


Don't Be Afraid of "Other Science" or PUBMED

One reason to read about other areas of science is to see whether concepts of ideas in one field of science my somehow solve a problem in another field.  Imagine you are a scientist working on some intractable problem.  Should you A) send the problem to other scientists in your field of study, or B) post it on the Internet for random individuals to see?   If you choose A, you might be very interested in listening to this Econtalk podcast with Jonah Lehrer on creativity and where our imagination comes from.

http://www.econtalk.org/archives/2012/06/jonah_lehrer_on.html

This was a fascinating discussion that showed that problems in science are rarely solved by people directly in the field.  You can skip ahead to the 41:56 part to hear this discussion of Eli Lilly and how they and other companies are solving "impossible" problems.
"... a bunch of Fortune 500 firms like Procter and Gamble, Lilly, Pfizer, Kraft, General Electric--companies with huge R&D budgets, in the billions of dollars. And they post a bunch of hard-to-solve problems online. And what's quite astonishing as an incentive is their success rate, anywhere between 40-60% of the problems are solved within 6 months. And they are solved by these strangers working in their spare time. The most interesting incentive, though, in the return to this outsider thinking, is that the problems, we look at who they are solved by. They are almost never solved by someone inside that same field."
Another part of the argument was the discussion of the peer review process and flaws in general with published science.  So, what might PUBMED have to say about this?  And is it relevant to climate science?  Yes and Yes, as we shall see:

First, we have this paper - it is a very interesting piece that covers reasons why research might be false, even if we exclude bias from the equation.

Why Most Published Research is False

Next, one suggestion I made to counteract the flaws of peer review is something similar to the Cochrane Collaboration [link] for the review of scientific papers.  Cochrane conducts meta-studies and seeks to improve the accuracy of science.

Oh, but wait, are these studies themselves potentially flawed?   Why yes they are.  And, has anyone thought of a way to address some of the flaws?  Why yes, they have.

Detecting Bias in Meta-Analysis

Seems like reading papers from outside one's home field of science might be a good thing.

The Spreadsheet Error

Finally, let's discuss the simple error in Mashey's spreadsheet.  He was attempting to calculate the average of a column of numbers to see whether there might be some "express review" process that contributed to the publishing of the papers de Freitas reviewed.  This cell has a formula for calculating the average, which he calculated at 235.   (The formula is the average of cells from M53:M715, when it should be M5:M715 - this has not been corrected as of 23 June)

Since I have an audit background and know that many spreadsheet have errors, it was probably 2 minutes after I opened the spreadsheet that I noticed that the range of cells the formula covered did not include all of the data.  As such, when I corrected the formula, I got a different answer (233 days vs 235 days).

The point of this is not that this was a fatal error, but that there is a good reason to read work outside of climate science to see if we can come up with a protocol that avoids errors like this.  I wonder if anyone has thought about this problem?  Why yes, the Dartmouth Tuck Spreadsheet Engineering Research Project (SERP) has been thinking about this. [link]

They have written this paper about the problem [link]

and they even developed an 11 step auditing program that would have likely caught the error.  (Specifically, Step 8:  Review all formulae not already reviewed for errors.")

While this error was relatively inconsequential, sometimes they are not, such as in this case in medical research where an entire column of data was mishandled.

Cardiologists retract... columns of data misaligned

So, hopefully any scientist whose daily job involves handling data in spreadsheets will be open-minded enough to take a look at this auditing protocol and implement it.  Maybe they could even collaborate with their MBA or Business program colleagues since their students need practical experience conducting audits.

Conclusions?
I'm going close this piece with a general discussion of how we often paint ourselves into a corner and then fail to realize that there is a way out.  I received several "suggestions" from the Skeptical Science gang about "how to be true skeptic" or how to think or what to read or who to trust.  There was virtually no discussion about points where are arguments agreed or any appreciation for ideas from outside climate science that might prove useful.  They might lodge the same complaint about me, so without debating that, here is a technique for when you find yourself painted in that corner and feeling defensive.  

Byron Katie has the answers [here] and [here]

The first part is what she calls 4 Questions and a Turnaround
  1. Is it true?
  2. Can you absolutely know that it's true?
  3. How do you react, what happens, when you believe that thought? 
  4. Who would you be without the thought?
Turn the thought around. Then find at least three specific, genuine examples of how each turnaround is true for you in this situation.

So let's say you believe that the polar ice caps are melting and we are all doomed.   
1?   Yes, they are melting... Yes, I think we are doomed.
2?   Absolutely know?  Well, I might have to admit that we might not be doomed.  I guess there is a shadow of a doubt.  People in Denver might be okay.
3.    React?  I get very worried.  I want to pass carbon taxes.  I want to recycle everything.  I want big oil companies to....  and I really want to tell those global warming skeptics to....
4.   Who would I be if I was not worried?   I'll let you answer that for yourself
Turnaround:  What would you do differently if you did not think we were doomed?  Anything?  Are you less stressed?  Good.

And, be careful about judging me on the basis of this post.  Byron Katie is onto the judgmental stuff, too.





Comments on John Mashey's Pal Review and Skeptical Science (Part 2)

Lessons of the Ice Cube / Puddle of Water Fallacy 

This is another concept from Taleb's "The Black Swan" TheBlackSwan , although I doubt that is the original source of this concept. However, this a very useful concept. Essentially, when you're looking at an outcome, such as a puddle of water that you think came from ice cubes, it is extremely difficult (if not impossible) to reverse engineer how many ice cubes it took to create the puddle. What size where they? Were they all the same size? How were they arranged? And, even if you know all of that, is there no other arrangement of ice cubes that might create the same size and shape of puddle?

In the debate with the Skeptical Science gang, they seem to seize on outcome-oriented statements and then make inferences about how that outcome came to be. Here's an example. At one point Rufus9 said something like "I read books and blogs" (in answer to how I came up with my point of view and where some of my "facts" came from.) In response, various parties said the following:
  • I'd say blogs and books "from both sides" of any debate aren't much use. 
  • You really get your information from blogs and mainstream books by unqualified authors? That's where you put the weight of your faith, or from where you expect to gain a reliable understanding?
  • You overstate your case -- a usual denial tactic,
  • But in the end your stance is vacuous
So all of those statements are looking at the puddle (which is really my skepticism of the validity of the claims of the global warming scientists and distrust of the peer review process), and inferring that there is some flaw in the way that I reached my conclusions.  "Oh, I see, I know people like you and I know why they have such wrong opinions."  Keep in mind that the sum total of my comments might have covered one type-written page, so we're definitely looking at a small puddle, and that makes the ICPWF situation worse.


Another way of looking at this is that it is extremely easy to take a judgmental position.  We are very good at judging, and we tend to fall for the ICPWF quite easily.  It is much easier to attack a conclusion or outcome than it is to develop an appreciation of why a person might have a certain opinion.  


For a greater understanding of our judgmental nature, I recommend reading BOOKS (or listening to podcasts) by Jack Kornfield - a Buddhist monk.  One of the best lines I can remember from him (and I don't remember the exact source) is where he is talking about our judgmental nature and counting the number of times he has made a judgment.  "... 23, 24, 25,... oh look there's another one..."  And, in another part he says "... our brains have no pride, they are like pasta machines constantly streaming ideas..."   The overall point is that we should be mindful of our judgmental nature and exercise caution when jumping to conclusions.  


About Jack Kornfield


Jack Kornfield podcasts from Zencast



Sunday, June 17, 2012

Another Paleo Hero - Denise Minger

I can't believe I forgot to mention Denise Minger in my last Paleo post.

She is perhaps most famous for her review of The China Study, which revealed serious flaws in the way in which the data in the study supported the claims of the authors.  Full story

Campbell: I find it very puzzling that someone with virtually no training in this science can do such a lengthy and detailed analysis in their supposedly spare time.
And:
Campbell: I have no proof, of course, whether this young girl is anything other than who she says she is, but I find it very difficult to accept her statement that this was her innocent and objective reasoning, and hers alone. If she did this alone, based on her personal experiences from age 7 (as she describes it), I am more than impressed.
Then thank you for the compliment, Mr. Campbell! I’m definitely a singular person, so I’m glad to more-than-impress you.
Initially, I didn’t want to muddy this post with retorts to statements like this, but really. What’s so hard to believe about a 23-year-old Super Nerd deciding to tackle a project out of personal interest? What do I need to show to prove I’ve got a brain in this noggin? 

Another reason why she is a hero is somewhat related to my post on climate science.  As the quote above shows, I think that the "experts" whose work used to hide in expensive professional journals that were not widely read are now becoming widely accessible.  That is great.  It is undoubtedly going to lead to a better outcome for society.

As Matt Ridley calls it, the Internet is "ideas having sex". matt_ridley_when_ideas_have_sex  That freedom of exchange of information enriches us all.  The "old guard" better get ready for some change.

Oh, and you should read everything Denise has ever written including her upcoming book.

"The recent silence here is mostly because I’m spending 22.5 hours a day finishing my upcoming book “Death by Food Pyramid,” which should be available towards the end of this year."  [2012]




Comments on John Mashey's Pal Review and the Skeptical Science blog forum

This post is some commentary of a recent experience that I had in commenting on this post / paper by John Mashey.

Pal Review True Story Fair Tail - John Mashey

I was "Rufus9" in the discussion forum.  Although I have participated in numerous discussions previous to this, I had never come across one with so many rules of what was "on topic" or so many instances of outright censorship in my posts.  At one point, after a particularly heavy "snipping", I actually ask the moderator to go ahead and delete the most of the rest of the post since he had destroyed the context of my statements.  Eventually I asked the moderator to delete my account.

Okay, so that was all quite interesting.  I had never experienced something like that previously.  I told some friends about it, and they said, "you're wasting your time, they only want to hear from people with their point of view."   I guess I agree with that, which is why I am writing this on my blog instead of re-instating my account on Skeptical Science Getting Skeptical About Global Warming Skepticism???.  Also, I'm not going to tolerate being censored for having different views.

So, where do we start, and what points will we cover?

1.  Is Mashey's paper worthwhile?  Can we learn anything valuable from it?
2.  Lessons of the Ice Cube / Puddle of Water Fallacy (ICPWF)
3.  Lessons in Moderation / Censorship
4.  Closed minds on Skeptical Science?

Mashey's Paper

This paper is about allegations between the two camps of the climate debate in which each accuse the other of having overly friendly networks of influence that help get papers published when they shouldn't.  This post concludes with the following statement:

"The next time you see a complaint about the fairy tale of rampant climate science "pal review", direct the accuser to John Mashey's documentation of a pal review true story."
Well, that's interesting, but let's look at the article / paper and the Excel spreadsheet and see if the case hold up under scrutiny.  First, if you are going to make allegations like these, one thing to be very careful about is the potential damage to someone's reputation (in this case Chris de Freitas, an editor of Climate Research).  I also want to make the point up front, that the allegations of Patrick Michaels may also suffer from some of the flaws I am about to point out.

What does the paper say?  Mostly it provides what I called "correlation but not causation" in my discussion comments.  Why do I say that?

1.  The spreadsheet lists a set of papers that the author feels are dubious and then shows how those papers were edited by de Freitas.
2.  The spreadsheet also lists the number of days that it took for the editorial review to be completed, notes that these papers took less time on average, and then asks "Suspicious?"
3.  It has an influence network showing relationships between authors
4.  It notes "After von Storch's resignation, Mashey documents that the pals' Climate Research publications [by certain authors] dried up."
5.  The paper highlights the von Storck resignation from Climate Research and quotes him:
"..the reason was that I as newly appointed Editor-in-Chief wanted to make public that the publication of the Soon & Baliunas article was an error, and that the review process at Climate Research would be changed in order to avoid similar failures. The review process had utterly failed; important questions have not been asked....It was not the first time that the process had failed, but it was the most severe case....I withdrew also als editor because I learned during the conflict that [Climate Research] editors used different scales for judging the validity of an article. Some editors considered the problem of the Soon & Baliunas paper as merely a problem of "opinion", while it was really a problem of severe methodological flaws. Thus, I decided that I had to disconnect from that journal, which I had served proudly for about 10 years."

Making the Case

So, does this then make a convincing case that de Freitas was the cause or played a major role in the publication of "biased research"?

No, not really. In fact all of this is circumstantial evidence. In fact, the entire spreadsheet, while it must have taken considerable effort to compile, is simply a convenient listing of information that was already known at the time of publication of these papers. Yes, these 14 were edited by de Freitas, but of course he edited other "normal" papers as well. From Table 1:
"... 14 accepted by de Freitas (bold), and 7 handled by others (red, underlined italics). De Freitas also accepted 13 seemingly normal papers from other authors..."

So, what are we missing, if that is not sufficient evidence?

1. An statement from von Storck about this specific allegation, and not about his general reason for resignation.
2. Statements from other editors or insiders at the journal
3. Statements from de Freitas
4. Statements from the authors
5. Documentation showing in some way that the editorial process was corrupted

It may be that none of the above are obtainable, but depending on the statements, we might have a much clearer picture of what happened.

Alternate Theory
Another flaw of Mashey's paper is that it is a "rush to judgment" that does not appear to examine any other alternative theories. For example, given the facts above, here is an alternative theory.

1. von Storck quite for reasons that did not include de Freitas' editing
2. Other individuals involved at Climate Research were involved in making decisions about what was published
3. The authors quit publishing at CR for unknown reasons
4. The authors do know each other, but are not part of a conspiracy
5. de Freitas left CR for reasons unrelated to his editing of these 14 papers

So, as I read Mashey's paper, I find it entirely circumstantial, and I seriously doubt if there was a court where this case could be presented that the prosecutor would even attempt to bring it before a judge. As such, I think the publication of this paper at this stage is premature and places de Freitas' reputation at risk without evidence capable of proving he actually did anything wrong.

Final Flaw
One additional problem with Mashey's paper is that, after "establishing" that the "biased research" was erroneously published is that he then takes a massive extrapolation to say that there is a causal link between these 14 papers, the "biased media coverage" of papers like this, and the survey result that:

"Therefore, many people  don't believe that humans are the primary cause of global warming (approximately 41% of Americans)."

Here again, we get into circumstantial evidence and no attempt to explore alternate theories for why people's belief might be one way or the other. First off, I seriously doubt that Climate Research articles have much influence on the average citizen. How many people actually subscribe? It is very expensive:
Annual rate(including print and online versions)2012: € 995 plus postage  [wow, not even free postage]
It may be that they are influential across the scientific community and with certain journalists who then quote these journals, but there are thousands of these stories published annually. How much influence can we give to this?

More importantly, here are a few alternative theories that could be investigated, although I could easily list 100.

1. People don't believe that humans are the primary cause because they are generally scientifically illiterate
2. People don't trust the media reports
3. People don't trust the experts (on either side)
4. Some people don't care one way or the other, and don't put much thought into issues like this

A different way of looking at this is to reverse Mashey's argument and see if you believe it: "41% of Americans don't believe... and de Freitas played an influential role in causing that". This seems like the butterfly flapping its wings and causing a hurricane story to me.

Conclusion

So, overall, I rate this paper as circumstantial at best with higher than necessary risk of reputational damage due to having an inadequate set of evidence. I also see the mingling of "people don't believe" with the question of editorial misconduct as an apples and oranges issue. They should be separated..

I will continue with some other points in another post.




Saturday, June 16, 2012

Gone Paleo

I have not been at this for a while, but thought I would restart posting. One of the things interesting me these days is the Paleo Diet. I've been on it for about a year with increasing "compliance" with the regime. For example, since January I've nearly quit drinking beer. Now, actually, when I do have one, I almost always get some sort of headache the next day. This is very interesting because it is not a hangover from the alcohol - I used to drink 4 - 5 beers and have no issues, and I still drink red wine and have no issues.

Why Paleo?

Well, I started down this path reading Paul Pitchford's "Healing with Whole Foods" and I made a level of progress, such as my blood pressure dropping from "borderline" of 135/85 down to more of 125/75. That was good. So, then I kept reading and researching.

Then I went through the Mercola phase. Yes, that's the Mercola's health news web site. I found some very interesting health articles on that site. Also, as I learned about scientific studies, I learned that Mercola will often criticize some studies for not being randomized control trials, and then turn around and cite studies that fit his point of view that are also not RCTs. So, not a bad source of information, but it pays to click the links and read the references. Just today, one of the studies he cited did not achieve statistically significant results for the point he was making. However, the other references checked out okay.

Okay, enough about Mercola.

So then somewhere along the way I found this great aggregation of articles and books and other references.

Paleo Diet dot com

That's what launched me on the Paleo diet. I started reading the article called Unexpected Facts... the article about the Banting diet, and the article by Gary Taubes called "What if it has all been a big fat lie".

Since then, I've become a huge fan of Taubes, Mark Sisson, the Latest in Paleo podcast, and Chris Kresser.

garytaubes.com

Mark's Daily Apple

latestinpaleo.com

chriskresser.com

For anyone wishing to skip ahead to the part where you just eat the food and don't worry about why, then check out NomNom Paleo

nomnompaleo.com