and one fine morning…
Life
you open doors and close them, quicker than the eyes of most
Aug 30th
In the past, I’ve decided on a specific computer hardware configuration and then purchased a custom systems with exactly that setup. In July, I chose and shopped for each piece separately and put things together myself. Here are the components I chose, taking me a total of 3 hours to physically assemble:
- Case: Antec 902

- Processor: Intel Core i7-930
- Cooling: Corsair H50 self-contained water cooling
- Motherboard: Gigabyte GA-X58A-UD3R
- Memory: Crucial Ballistix 6GB (3x2GB in triple channel) DDR3 1600
- Boot Drive: Samsung Spinpoint F3 HD103SJ (1TB, 7200 RPM, 32MB Cache)
- GPU: Sapphire Radeon HD 5850 (1GB DDR5)
- PSU: Corsair 750TX
- Data Drive, Optical Drive, and Card Reader: scavenged from unused computers at home.
I have the system overclocked from the stock 2.8 GHz to 3.8 GHz. It’s stable and smooth, and the H50 provides plenty of cooling, even when the processor is at 80-90% load. I installed the H50′s cooling fan backward on purpose. This means that the radiator for the cooling sits on the back exhaust of the case, and not on a back intake. I based this off of an article at Tom’s Hardware which suggested that preserving overall airflow of the case is more important than getting cool ambient air for the processor’s radiator. I find that both processor and Northbridge temperatures do not exceed 65C, which is 15-20C below their suggested limits. I am also very pleased with the H50′s noise performance, since I can hardly hear it. The 902 is also a very quiet case in general, unless all the fans are turned up to high.
All in all, this build is a success! I did it for $400 under the “custom configuration” style websites, a full $550 under the Dell equivalent, with a better case to boot. As an added bonus, I now feel fearless about putting my own components together. If you are considering making such a step, just know that pieces these days don’t fit together the wrong way (for the most part) so it’s hard to “put it together wrong” and that your actual assembly process will probably take you twice as long as you think it will. Email me if you want tips or ideas. Otherwise, I think Tom’s Hardware and AnandTech are great for ideas. Check out MicroCenter for your processor (I saved $99 by going to this “brick and mortar” store) and investigate Bing Cashback for your online purchases.
Unrelatedly, I heard an interesting discussion on the Nature Podcast about an experiment that calls into question something called the “testosterone folk hypothesis.” Most people associate testosterone with aggressive, antisocial, and egoistic behaviors. However, researchers found that testosterone actually resulted in people being more fair in negotiations when blinded to the drug they had received. Here is the fascinating, yet somewhat unsurprising part: those people that were told that they had been given testosterone behaved less fairly and more aggressively in negotiations. Essentially, the prejudice about testosterone influenced people in the opposite way of the actual hormone! Read the full paper free, here, courtesy of Nature.

On July 11, my lovely friends Jonathan and Lida just had a beautiful baby girl named Eva Ann. She’s the first baby that I’ve actually known since the beginning, and despite her predilection for emptying her bowels when I hold her, I am fascinated by her.
Lastly, (since I am wary of counting chickens or bragging), I will add that my first academic paper has been submitted. It is called Predicting criticality and dynamic range in complex networks: effects of topology. You can read the preprint abstract here, or download the preprint PDF here from the arXiv. My collaborators were Juan G. Restrepo, my advisor, and Woodrow L. Shew, a physics-trained neuroscientist with the National Institute of Mental health, a part of the NIH. I am really excited about this submission, and will post any news about it here.
your boldness stands alone among the wreck
Jun 10th
Recently, I’ve noticed an interesting phenomenon with how I think about decisions. Basically, if it’s after 10 or 11 P.M. I’m a bit more melancholy about things. I find myself missing people that I care about but haven’t seen in a long time. Normally, I would write this off, but it’s been relatively consistent recently. The result though is that I consider the plans that I have made for the upcoming days, and start to reconsider all of them. I start to feel lonely and wonder if the plans that I have made are just empty emollients.
Here is the thing I can’t figure out: which of my persistent mindsets is more accurate to reality? Is it the sleepy and somewhat contemplative emotional mindset? Or is it the face-to-the-sun headstrong and sanguine mindset? How does one find out?
Hot Dude Party is on a break for the summer, and Chaos is in a serious MCAT study zone and therefore not very much fun to be around because MCAT is all that’s on his mind. But on May 26, we played a show at Herman’s Hideaway and my brother took photos, for example the one above. Meanwhile, in real life, closer and closer to finishing my first paper for submission.
Gabby is out here for two days for a conference, and it’s awesome to see him. He seems to work his ass off, and I really admire him. He’s staying at the St. Julien hotel, and it’s seriously posh inside. I haven’t been in a nicer hotel since staying at 21c in Louisville, KY.
I can’t stop listening to this song: Little Lion Man, by Mumford and Sons. It’s so good. Their whole album is good. A million thanks to Mike Larremore for the recommendation on these guys.
this old gal rattled, rattled, rattled like a tin can
May 25th
Time for a little bit of internet management here. I did the standard self-google and decided to brush some things up. Here are links to some of the things that I would like to see more of:
- My academic homepage at CU’s applied math department: Daniel B. Larremore
- My personal website: tomorrow i will run faster…
- Fun stuff, like my contribution to NPR’s Planet Money: Lawnmowing efficiency
- My band’s website (recently created! I am pumped): Hot Dude Party
Eventually, it would be nice to get results for some of my publications, but of course, having publications is a necessary condition for them to show up in a search. I would also like Twitter to stop showing up. I disabled the automatic feed from twitter to the blog. If you still want to read twitterbits, just follow from twitter directly.
Meanwhile, life is good. I am running the BolderBoulder this coming Monday, and feeling decent about it. I also picked up a sweet new cycling outfit from Wheat Ridge Cyclery, which makes me feel a lot faster. I assume that it helps when the shorts match the jersey. I would estimate that I now go about 20% faster. “lol”
Research is going well. I am starting work with an undergraduate student named Kevin Murphy, and he seems to be really sharp…and works hard too. This should make for a good summer. Meanwhile, I am still working on a draft of the paper that we hope to submit pretty soon on the dynamic range of excitable networks. Dane and I have also started collaborating on a project about percolation. We’ll see how it goes.
consequence
Mar 28th
I bought new wheels for my bike today. Ultegra, tubeless. Should be fast, and a lot stiffer than my old wheels. Taking them for a spin tomorrow. Played some good pool yesterday. Haven’t done that in a while. I still remember how to play. How about that? Went out and stayed out late last night. Today I have been a bit of a zombie. But there are a lot of good things going on:
I’m on my way to being in shape again. I have been getting exercise 5-6 days a week, which is a nice adjustment back toward being healthy. My leg feels so much better without screws.
Math has been going really well. I have given 2 talks this month, and will give another one (hour long…eesh) this Thursday. Barry and I were talking, and agreed that you should probably give every talk you have the opportunity to. I have another poster for an upcoming conference too, NTD10, at College Park. After that, I think we will write the paper.
Music has been going well. HDP has gotten some radio play, which is nuts. We recorded a demo. Download it or listen here if you want. I worked on the website for a little bit today. Here is what I am thinking.
Finally, my dad and I worked on a bookcase the other day. Going to put an ad up on craigslist and get a roommate or two in the house. I think that will be nice, especially this summer and in the fall.
Bri and I broke up last week. I have been thinking about her a lot. Feels weird to say this, but I really hope she is not out of my life for good.
poseidon, look at me
Mar 22nd
Fixed WordPress. Fixed some wikis. School is going well. I actually like analysis. Who would have thought? Not that I’m that good at it, but…I like it.
I’m walking again, slowly but surely. It’s spring break now, and I just fixed my bike. Good GOD, I might actually be a real person again within a month!
Starting research with Juan Restrepo, again, slowly. But it’s nice to start to get my feet wet.
I read Malcom Gladwell’s latest book, Outliers. Interesting. Same sort of mental candy as his other books. They taste sweet, and I can’t take in too much at once, because it makes me feel unhealthy, but the ideas are very interesting.
Here are some funny pictures:
caught up in a whole new life
Feb 28th
From letter to DH:
On Wednesday the 14th, we were training on a run called Powderhorn, for GS. Before running a course, you “slip” it. Everyone goes down very slowly, on edge, and scrapes all the extra soft snow off the course. You want ice. It’s fast, and your edges will hold. It’s safe.
When our coaches told me to run the course, it was half slipped. Still soft. Dangerous. The first few gates were no problem—flat. On the steep face though, with more speed, the softness became a problem. For one particular turn, I set my edges in, and was finishing the turn, but slipping farther and farther out. Too far out, and I hit all the snow that had been slipped off the course. Tumble tumble. Tumble tumble. Race bindings are cranked. They are set so your ski doesn’t come off. The skis are nearly two meters long. So I tumbled down the hill with sticks, taller than I am, attached to my legs.
Somewhere in the tumbling, both the bones in my lower leg broke. It’s a weird pain. Hot. Firery. It’s like a screaming fiery bird. Tingly. A tingly, prickly, screaming fiery bird. My leg was facing the wrong way below the knee, when I looked down. I almost cried. I decided to scream instead, right after I slipped my leg around, and gagged a little.
Teammates were there within 30 seconds. Ski patrol in 2 minutes. Mike and Ashley. “I know you from somewhere,” said Ashley, and I smiled, having no idea why her face was familiar. “Wait. Halloween. You were wall-e. I was a washing machine. We were wearing huge cardboard boxes in a packed bar,” she said. “Ooooooh, your costume was full of jello shots!” I smiled. The random ski patroller and I had a back story. And then, Mike informed me that the splint was coming on, and that it was going to hurt like hell. “We’ll have something a hell of a lot better than jello shots for you in the patrol lodge,” he said.
In the toboggan ride down, I started to feel better. Going to live. No doubt. Going to suck, but alive is all I need. It was bumpy and hurt. I felt hopeful. It made me start crying. Why is everyone so GOOD? Why do people help each other? Why so kind? So calm? They care? I was overwhelmed. I decided to sing. I don’t know what I sang, on my back, in a sled, strapped in behind the patroller who was guiding me. It probably sounded awful, but to me, singing—so I wouldn’t cry.
The worst part was 9:25 a.m. We got to the lodge, they put me on a medical table, and cut the clothes off my body. But before administering any drugs, they had to check things out, which required getting the boot off. Conscious the whole time, but not by choice. “Pardon my French, guys, but that fucking hurt like fucking hell. Fuck. I mean. . .Fuck!”
“Oh, it’s ok. We all speak French. You’re doing great.”
I laughed. I think I said thank you about 50 times.
The people in the ambulance were equally nice. And the hospital staff. And the surgeon. And my parents. And my coaches and the other people who visited me from the team.
This is when I started realizing how much I was learning:
1. If breaking your leg sucks this much, war is absolutely not acceptable. How can nations hurt so many people? It’s miserable.
2. Helping people is the point of it all. Make people feel good. Life is not that easy, but it’s so much easier with other people. Maybe they visit when you’re weak. Maybe they give you a ride home, voluntarily. Maybe they smile at you if you look sad. Maybe they twirl your hair in the summertime while Sigur Ros dances in your ears.
Life is a festival. It is learning. It is non-trivial. It is so much, and deserves so much respect and so many thanks. I no longer have the words to describe what I have learned, other than that I’ll be treating chances to help people much more as opportunities. I love this life. I hope other people do too.
From letter to ambulance management:
This letter is to express my gratitude for the service and care I received from _____ on January 14, 2009. I broke my tibia and fibula while skiing at Eldora, and _____ was the paramedic who accompanied me during my ride down to Boulder Community Hospital.
I think there are two things that can get in the way of optimism after an injury: pain and fear. Now, I’ll thank biochemists somewhere for inventing valium and morphine, to take care of spasms and pain. But talking with _____ in the ski patrol lodge and the back of the ambulance made a huge difference in making me feel less scared, and therefore more positive. We talked most of the way down, during which time he answered all my questions, gave me a rough idea of what would happen once we got to BCH, and even laughed at my (poorly delivered—thanks, narcotics) jokes. I began to feel better even before I got to the hospital.
I am not sure what type of performance is standard for paramedics, but the quality of care I received, and the genuine way in which it was delivered, both far exceeded my expectations. In the past three weeks, I have learned a lot about how people treat each other, what it means to graciously give and receive help, and kindness. In no small part, _____ helped me in this learning process, and made me feel at ease during a time when I was pretty terrified.
For these things, I am very thankful. It is my hope that this letter may assist _____ in some way, perhaps when it comes time for performance reviews. In my opinion, his was above and beyond. Thank you.
…and we filled our arms, carried all we could
Sep 28th
Sigur Ros and Parachutes played at Red Rocks last night. I really don’t know if I have the right words for the show.
I spent the day studying Analysis at a shop in the Highlands, and buried my mind in the pure logic of math. A weak breakfast and two cups of coffee spread me pretty thinly over reality, and after a nap from 4-5 I woke up feeling lucid, but still thinned to patina-consciousness. This was a good setup for the show.
It was about 65°F out, and mildly windy at Red Rocks. Our general admission seats turned into row 16. I am not sure how much more there is to say that could do the show justice. Seeing Sigur Ros play in the wind, with smoke billowing around them, was entrancing. I haven’t been to a show before where all I wanted to do was stand still, and stare, taking in all I could.
Some bands project energy to the crowd, and receive energy from the crowd; they use an energetic correspondence to create a concert. I think last night, both bands just played, and the crowd watched (nearly) silently. It doesn’t take that much to get a 10,000 people cheering, but it takes a lot to get 10,000 people completely silent—I could hear people coughing from across Red Rocks in between songs in the beginning.
Sigur Ros and Parachutes were just making music, and taking in the night, and we were just there to watch and be included, while they did something deeply personal.

Completely unrelated, here is an interesting blog, where a married couple chose to subject themselves to a $1.00 per day diet, on which the world’s poor are forced to live. Check it out: http://onedollardietproject.wordpress.com/
við spilum endalaust
Sep 24th
Purge[mind[t],{t,a while back, now}]
Carlin moved to SF with Barry and Helen. Ollie arrived tonight. They are all living together, and I am very excited for them. I think it will continue to be positive for all involved.
Among other wonderful reinterpretations in Man’s Search for Meaning, Viktor Frankl turns the concept of transitoriness on its head. Usually, we think of things that have passed as transitory; after all, things that have passed are no longer with us. Turning this on its head, Frankl writes, “[T]he only really transitory aspects of life are the potentialities; but as soon as they are actualized, they are rendered realities at that very moment; they are saved and delivered into the past, wherein they are preserved and rescued from transitoriness. For, in the past, nothing is irretrievably lost but everything irrevocably stored.”
Ok, let’s take that and spilum. Given that at any moment, there are a (countably*) infinite number of possibilities (Frankl calls them potentialities) and that whatever entropic process pushes time forward has the capacity to select one of those possibilities as what actually happened, we conclude that human’s** free will*** has the property of being scribe/selector of which potentiality becomes past reality. Id est: choose your own adventure. “On Rosh Hashanah it is written, and on Yom Kippur it is sealed.” Except that on Rosh Hashanah in this case, there’s too much written, so free will lets us edit the text up until the Yom Kippresent Moment. And in implementation, we use the continuous-time version of the model instead of the discretization—we don’t need the error anyway. </garbage>
Here is maybe not some garbage though. ∃ a huge number of potentialities
⇒ one may exert a large amount of influence over what entropy makes permanent when it records/makes irrevocable the past
⇒ one should attempt to maximize the value of what one allows to be made irrevocable
⇒ contrive a plan to Live Now that solves the maximization problem.
School is going well. Sometimes I think that classes and teaching really get in the way of learning. That, however, has a bit to do with who is lecturing that day. I have continued to heed BE’s advice and have enrolled in a macro econ class. It’s fun because the other students in the class don’t understand that math, and I don’t understand the econ. However, I think the econ is made clearer and more intuitive when the math is already intuitive. I regret (for the sake of the other students) that sometimes the econ intuition may not help with the math intuition, but who knows? I haven’t been there, so I don’t really know.
I have been riding my bike a lot, and recently rode my first century. It took me (and my aunt) 6 hours and 25 mins, which is fine with me, since I just wanted to finish. I got going 52 mph down a hill outside Boulder, which was really exhilarating. Finished with a good attitude despite a flat at mile 83 that really messed with my head a little.
It’s too late now, and I need to TeX up analysis notes in the morning. More ideas than usual lately, but sometimes a little trouble getting them all down. Here are my current goals, with which I have been having a fair amount of success over the past couple months:
- Write every day.
- Eat breakfast every day.
- Emulate Gadi’s confidence.
Interesting articles: Cities rethinking ’50s-era parking standards and What makes people vote Republican?
Over and Out. Here is a picture of Frankl. I highly recommend Man’s Search for Meaning, because it is very good, and only 160 pages too!

*math joke only. No intended meaning.
**gender-neutral form of man’s? ⇒ No the apostrophe isn’t incorrect.
***for our gedanken, we assume ∃ free will.
you’ll find out
Jul 24th
Here is an interesting article that is constructed from exerpts from interviews with John Wheeler, who passed away this year. He studied quantum theory with the likes of Einstein, Feynman, and Bohr. He’s the guy who coined the term “black hole.”
His philosophy and its ties with quantum theory are very interesting: Quantum theory poses reality’s deepest mystery
the birth of blue
Jul 17th
I finished The Limits to Growth, and found their conclusions very interesting. Specifically, it was good to see simulations that made assumptions such as, “what if we had twice as many natural resources?” or “What if there were “perfect” birth control? ” The ability of their model to demonstrate a need for unified change, across all major variables, was very convincing. I am going to start on Jeff Sachs’ book, Common Wealth later this week.
DC sent me a link to a speech by a man named Adam Werbach, which was fantastic. It’s a video, or a podcast, or a pdf transcript:
Adam Werbach is former president of the Sierra Club (at age 23), and founder of the first sustainability consulting firm (originally Act Now, recently merged/renamed Saatchi & Saatchi S). In this speech, he talks about how we need to move beyond a green movement to a “blue” movement which can engage 1 billion people in changing their behaviors. The focus shifts from saving the planet (which appeals to a narrow audience) to saving people and making people happy (a mainstream goal). He started something like this at Wal-Mart by engaging employees and their families in a program called PSP (Personality Sustainability Practice). You can read more about Werbach’s controversial decision to work with Wal-Mart here:
http://www.fastcompany.com/magazine/118/working-with-the-enemy.html
Basically, each person chooses one “nano-practice” that is SMART
Sustains the planet
Makes you happy
Affects the community
Repeatable
Takes visible action to focus on for a period of time.
Ok. Here’s my commentary, in case you were interested: Werbach has vision. He is, however, the Danton who is too pragmatic for the enviro-Jacobins. I think that Werbach’s ideas show a lot of foresight, and he realizes that radical environmentalism isn’t the best way to change the world‘s environmental practices. I am getting excited now: Jeff Sachs has well-argued opinions on economic growth and eradication of poverty through the widespread, small-scale, e.g. microloans. Werbach’s message is essentially the same, but applied to a different problem that is endemic to current worldwide culture (broadly speaking.)
If you take Werbach’s small-scale ideas, and combine them with massive structural/policy changes, as suggested in Lester Brown’s Plan B 3.0: Mobilizing to Save Civilization, the result could be serious change on a large scale, capable of redefining what is thought to be possible by humans. Brown recognizes the need for change in policy very clearly, while Werbach sees the power of changing a culture… And all of this was written about 35 years ago in The Limits to Growth, whose conclusion is that reducing pollution, stabilizing population, and investing heavily in technology won’t change the world’s outcome—it will only change the timing of events, give or take 50 years. The real solution is a change in cultural practices in simultanaeity with changes in world policy. Otherwise the world’s dynamical system has predictable and not very bright futures.



