"Too much UV penetrating the skin (too pale-skinned under intense sunlight) increases Vitamin D but reduces folate. Lack of folate causes neural tube defects in the fetus, causing such congenital abnormalities as craniorachischisis, anencephalus, and spina bifida, leading to many miscarriages. On the other hand, too little UV penetrating the skin (too dark-skinned under dim sunlight) increases folate but reduces vitamin D. Lack of vitamin D causes skeletal neonatal abnormalities (skull, chest, and leg malformations), rickets being the best known. Again, this causes miscarriages. And so, humans adapt very quickly to solar UV. Prehistoric groups that migrated towards the equator got darker. Prehistoric groups that migrated away from the equator got lighter. But this explanation fails for Europe. Northern Europeans are lighter than everyone to the south (Mediterraneans), to the east (Mongols and east-Asians), to the west (Native Americans across the Atlantic), and to the North (Inuit,...
more...
- bob
from Bookmarklet
Scandinavians ate mostly meat and fish, and they are even 'whiter' than average European: not only they were white-skinned, but also blond. This fact ruins article's theory, isn't it? ;)
- Pavlo Zahozhenko
Could it be that Scandinavians supplement their diet with rice and grains and therefore receive less vitamin D than anyone else at that latitude? They are whiter than the average European primarily because of the sunlight availability which vitamin D from fish does not easily overcome.
- Bill Strathearn
It's too bad that Knol isn't more like Wikipedia where anyone can edit -- I would trust it more ironically.
- Paul Buchheit
Yes, Paul, but is ironic trust what they're really going for here?
- Cliff Gerrish
Blonde people are blonde because of the Gulf Stream. Also, notice that the graphic on the right has been changed in the live Knol. Blonde people are now represented by a light tan rather than blue.
- Kevin Fox
I thought Google shut down Knol on October 27, 2009. Wait...
- Jérôme Flipo
Yeah, I think I read that on Wikipedia...
- Cliff Gerrish
Paul, I think that open and unrestricted document collaboration works best only when there is a semi-dedicated community of editors to police the content. That exists in Wikipedia, but is hard to replicate elsewhere. Full disclosure: I lead the Knol team and am the majority code contributor.
- Bill Strathearn
I found this article very interesting, and well written to boot.
- Will Higgins™
What do you know? Valleywag got everything wrong. Google is hiring, not laying off. Also, our interview scores actually correlate very well with on-the-job performance. Peter Seibel asked me if there was anything counterintuitive about the process and I said that people who got one low score but were hired anyway did well on-the-job. To me, that means the interview process is doing very well, not that it is broken. It means that we don't let one bad interview blackball a candidate. We'll keep interviewing, keep hiring, and keep analyzing the results to improve the process. And I guess Valleywag will keep doing what they do...
- Peter Norvig
from Bookmarklet
Further, while you hired a rare few people who got "1" scores on one their interviews, you rejected 99 percent of those people, and you have no idea how they would have performed. Those you did hire turned out to be top performers. Sounds broken to me. (I am the author of the Valleywag post in question.)
- Ryan Tate
Hi Ryan, thanks for commenting. First: we get over 1000 resumes a day. We can't hire all of them. I am painfully aware that a few of the people we don't hire would be as good or better than a few of the people we do. I feel bad for the people we have to reject who are equally qualified, but that is the nature of uncertain decision-making. Now what I said in the Seibel interview: we try...
more...
- Peter Norvig
It's a great shirt. Google is tops. No system is perfect -- so long as there's a weighting for intangibles and accounting for style differences between interviewer and interviewee, all should be fine.
- Christopher Galtenberg
Bump. Maybe Ryan didn't get a chance to see that you'd responded, Peter.
- Matt Cutts
Could you recommend any literature on data driven hiring practices? Google seems to use many analogical reasoning questions for screening applicants. It would be interesting if there was a relationship between analogical reasoning and productivity.
- Brandon Smietana
Peter, did you ever read Malcolm Gladwell's book Blink? Seems to me the other piece of the hiring process to analyze is the cost-benefit analysis - is it worth doing so many interviews and so much testing if people's first hunch is often the best indicator? (Which isn't exactly what Gladwell said, but partially).
- Laura Norvig
I'm very suspicious of relying on the first hunch. If you hired everyone based on your first hunches, you would discover that most of the time you are wrong. I've lost count of the number of times I've interviewed someone (either on-site or as a second phone interview), and learned that the previous interviewer did not ask them to write code, despite the position being one that required...
more...
- Piaw Na
Yeah! Always go with the _second_ hunch.
- Andrew C
"The Tornado Web guys (from what I can tell) handle it differently. They allow MySQL queries to block the entire process. However, they compensate in two ways. They lean heavily on their asynchronous web client wherever possible. They also make use of multiple Python processes. Hence, if you're handling 500 simultaneous request, you might use nginx to split them among 10 different Tornado Web processes. Each process is handling 50 simultaneous requests. If one of those requests needs to make a call to the database, only 50 (instead of 500) requests are blocked."
- Gary Burd
from Bookmarklet
Requests are not blocked because there's usually one request per server (except for long polling and other special cases).
- Gary Burd
It's between the stroke one from the neuroanatomist - Jill Barad, I now remember - and the very first one I ever saw, on Seadragon out of MSFT.
- MaryB, BrandingBroadOfFF
from iPhone
Amazon.com: Artificial Intelligence: A Modern Approach (3rd Edition) (9780136042594): Stuart Russell, Peter Norvig: Books - http://www.amazon.com/Artific...
We sent the final pdfs of the new edition of this book off to the publisher. The market reacted by gaining 2% on the day.
- Peter Norvig
from Bookmarklet
Part of the reasons why large companies are not fun places to work at is there are bad managers who are good at managing upwards (euphemism for sucking up to their bosses) and are adept at claiming credit for their employees' work. How does one prevent these people from succeeding?
Me too...It seems like somehow we need to have a system to weed these people out and we don't.
- Bindu Reddy
Simply stand up straight, and tell you co-workers the work you're doing so they'll see the nonsense and eventually that nonsense will stop (I know from real examples).
- Christopher Regan
These bad managers succeed because of bad management. The people managing them have no clue what's going on below them. Rather than looking for the types of results you'd expect from a good manager (ie. a team or set of employees that get the job done), they enjoy the ass kissing too much. It's happened at every single job I have ever worked at. Big or small. Good managers are just hard to find.
- Rahsheen ™, Coach Rah
Transfer, because they are also fantastic at pushing blame down to anyone that might make them look bad. Eventually, when no one wants to work for them they get pushed aside in the company. Pointing out a pattern failure and ineptitude to coworkers can work, but frankly it's not worth the risk if it gets back to them and might just make you look petty
- David Knight
Rahsheen, I agree with you that the core reason is bad management or eternal conflict between various members of the management right on the top that allows for this.
- Bindu Reddy
Christopher, telling your coworkers can be dangerous. Esp if the "bad manager" is smart enough to play the "divide and rule" strategy with their employees. Some managers are so bad that they constantly pit their employees against one another.
- Bindu Reddy
David, great point. Yes these very ppl are really good at transferring blame
- Bindu Reddy
I am more annoyed by managers who make bad decisions than managers who take credit for my work.
- Gary Burd
I've worked at small companies, family-run companies, start-ups and world-wide corporations. There were bad managers at every place.
- Admiral Anika
Gary - I see how bad decisions can be really harmful....Anika, agree there are bad mgrs everwhere but they can easily hide and even thrive in a corporation.
- Bindu Reddy
"There are two goddesses in your heart: the Goddess of Wisdom and the Goddess of Wealth. Everyone thinks that they need to get wealth first, and wisdom will come. So they concern themselves with chasing money. But they have it backwards. You have to give your heart to the Goddess of Wisdom, give her all your love and attention, and the Goddess of Wealth will become jealous, and follow you."
- Paul Buchheit
from Bookmarklet
pbowden: Everybody who loves to code: Watch @therealadam's excellent talk "Just For Fun: Rediscovering Coding as a Hobby". Great stuff. - http://twitter.com/pbowden...
I agree with this: "these guys have internalized the APIs and libraries, and in particular the list- and sequence-processing functions, just like a seasoned Perlmonger or Java-head have internalized those languages’ key APIs. And you’re not really a Clojure programmer until you’ve done that." It's not enough to know the language, you need to know the core API.
- Gary Burd
@Gary - totally agree. Wish I had a project/time to work on learning idiomatic Clojure myself. I've been dabbling for a few months, and I know my way around the syntax and design now, but still haven't come close to internalizing the language yet. FP really is a (refreshing!) break from the usual, though, even as a dabbler.
- DeWitt Clinton
If I were Google I would spend more resources and time on making new original big ideas work. Instead of working on 60 products work on 6 big original ideas.
- Bindu Reddy
from Bookmarklet
Thank you for putting up this post. I'm going through the same thing. I can't decide whether to get my PHD or start working.
- Maryam
"Lots of choices in life is about choosing one or another, and it will never be clear which was the best, and there is no "scientific" way of choosing, lots of luck are involved too."
- Clare Dibble
FunkyRose, what did you take from the post? what is your field?
- Clare Dibble
I'm an MBA student and I'm almost done doing my degree.
- Maryam
In the case presented , I would pick the startup. But otherwise , I would say pick a PhD, it gets difficult to do one later in life..and its generally a rewarding learning experience.
- Hari
There are also arguments that startups are also difficult to do later in life. :-) Not that I agree with either premise.
- Piaw Na
Design a program like you’d mount a car wheel If you completely tighten each lug nut one-at-a-time the wheel will go on crooked. So you tighten the nuts in alternating corners with at least two passes per nut to set the wheel snug and centered. When designing the components of a program you should not code each component to completion before... - http://socmoth.tumblr.com/post...
Just the other day I was commenting to my coworker how strange it is that people try to design whole massive systems before starting to code. That must be why they are routinely late, canceled, and over-budget.
- Gabe
"It was all very humbling. So humbling, that I found it hard to do anything at all. I had designed and announced my new company. I was psyched for it to exist. But when it came down to doing the necessary work, I hesitated and procrastinated. “Who am I to be starting another company? I’m just going to fuck it up like last time.“ After all I’ve learned, I can’t believe anyone actually thinks they’ll succeed in the complex world of business. Don’t they see all the really smart people who have tried and failed? I can’t believe how foolish I was to start my first company. Just me in my bedroom with no experience, making a little website, when I was up against giant IPO-funded competitors. I was an over-confident punk, thinking I had the answer, and everyone else didn’t. But it worked."
- Paul Buchheit
from Bookmarklet
Wow, that's pretty interesting for a student like me. :)
- Angely
Thank you, Tinyprints, for making this possible. Visit tinyprints.com to create your own personalized photo cards, holiday cards, invitations, and announcements. </shamelessplug>
- April Buchheit
Also: "At the periphery, people have fewer friends; this makes them lonely, but this also tends to drive them to cut the few ties that they have left. But before they do, they may infect their friends with the same feeling of loneliness, starting the cycle anew. These reinforcing effects mean that our social fabric can fray at the edges, like a strand of yarn that comes loose from the sleeve of a sweater."
- Ruchira S. Datta
I had gotten this e-book based on the review http://www.nytimes.com/2009..., which was unusual in being very long yet continuing to surprise right up to the end. I'm only in Chapter 2 of the book and am already coming across more surprises.
- Ruchira S. Datta
Oh, ok, I remember reading the NY Times article. Sounds like a perfect book for me to bring to the Carribean on the Kindle.
- Piaw Na
Hmm, now I'm wondering about the interplay with centrality in the more general observation of loneliness being socially contagious.
- Ruchira S. Datta
D. Modha and IBM's Blue Brain project reports progress in scaling up neural models to the size of a cat brain. Some day soon, computers may be able to cough up hair balls and barf on your sofa.
- Peter Norvig
from Bookmarklet