Category Archives: weekly head voices

Rhythm of the Night. [Weekly Head Voices #66]

Posted on March 4, 2012 | 2 Comments

(This post has an extremely high slightly-insane-rambling index (SIRI). You have been warned.)

The rhythm of life

I love Unkle. Here’s the introduction to their song Back and Forth:

YouTube Preview Image

The only life you can get is one made up of ups and downs. The trick is in learning how to deal with the downs, increasing the number and duration of the ups, and enjoying every last drop out of them. This realisation was brought to the surface by a car advert in which the narrator claimed that time in the car equalled “quality time”. I don’t like cars, but I love quality time. It usually comes in little bits and, as I’ve reported before on this very blog, happiness and other important things also come in little bits, interspersed by other often less interesting bits. Although one has a limited extent of control over some parameters of this rhythm of ups and downs, of excitement and boredom, it can never be smoothed out. As is often the case, the best course of action is the zen one: Step outside and try to absorb completely the multi-factorial whole.

Intermezzo – this post’s title was inspired by this Italian masterpiece:

Selling one’s soul to the Virtual

A week ago, I started going through my bookshelf trying to find books that could potentially be given away or sold, freeing up some space for I’m not sure exactly what. Here’s a photo of some of them:

Books traded for space.

Each of these gave me pleasure at some point in my life, taking me on journeys to faraway corners of my imagination. Each of these contributed in some way to the ball of thoughts that is me. Years ago, I would not have considered giving even a single book away. Now I do, because I convince myself that everything is available digitally. I do read on my Kindle, where everything is far more convenient and takes up zero real-world space. I can never lose anything again. If I want anything, I can either find it in my archives or acquire it anew.

Could this line of reasoning, this position, be something that’s really quite insidious? Besides containing information on their pages, the books are tangible and visible reminders of the knowledge that they represent. By getting rid of them, could it be that I’m exchanging parts of my soul for an empty, virtual promise, for oblivion? Maybe the books should remain there, on my bookshelf, as constant physical reminders of the knowledge that they brought me — of all the knowledge that I should continually cultivate and upgrade.

Maybe the time has finally come for the 21st century reboot of Microsoft BOB. :) Then a failed (and the brunt of many jokes) experiment, perhaps now the seeds of a solution to the problem of trading the physical for the virtual. Imagine a private room where you can walk between your virtual bookshelves, a virtual haven to keep your slow, real humanity intact.

Life philosophy that works

Neil deGrasse Tyson is a prominent American astrophysicist and science communicator. Recently he took part in a IAmA session on reddit, where he answered the questions of random reddit users. To the question “What can you tell a young man looking for motivation in life itself?” his answer was the following:

The problem, often not discovered until late in life, is that when you look for things in life like love, meaning, motivation, it implies they are sitting behind a tree or under a rock. The most successful people in life recognize, that in life they create their own love, they manufacture their own meaning, they generate their own motivation.

For me, I am driven by two main philosophies, know more today about the world than I knew yesterday. And lessen the suffering of others. You’d be surprised how far that gets you.

This will definitely find its place in the Unified Dogma of Me (UDM). For now, I’m doing my best to fuse it permanently with my atoms.

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What is love? [Weekly Head Voices #64 no #65]

Posted on February 14, 2012 | 4 Comments

I’ve been dealing with a spot of blog writer’s block, hence the lateness of this post. I’d forgotten that these monthly instalments were initially intended to be extended status updates, with a spot of backyard philosophy every so often. Trying to come up with worthwhile backyard philosophy every week is just plain hard. This week I’m going for half a status update along with a list of possibly interesting sciencey tidbits.

  • I’ve managed to release a stable version of DeVIDE, my Frankenstein-Borg software system for visualization and image processing, only about 2.5 years after the previous stable release. Go get yours fresh from the oven, it’s completely open source!
  • It seems like yesterday when I got to design and teach the first MedVis Ninja course at the TU Delft. The fourth generation of students have just started with the course (partly the reason for pushing out a new DeVIDE release). The previous generations are kicking ass as we speak, and I’m proud of ‘em all.
  • I had the privilege of giving another invited talk, in Dutch, at the yearly conference of the Dutch Anatomical Society. In my talk, titled Data Visualization: Driving the human visual system for fun and profit, I introduced data and medical visualization, and then discussed three illustrative examples in more depth: high quality volume rendering (work by Thomas Kroes), diffusion tensor imaging (work by Jorik Blaas) and fMRI connectivity visualization (work by André van Dixhoorn).

That’s it for the status update. The sciencey bits I thought were worth mentioning are:

  • There’s been some press lately about the letter to the Wall Street Journal, signed by 16 scientists, in which they try to make the case that climate change is really not such an issue. Climate change denialists everywhere rejoiced, I cringed. I really don’t like denialism. Fortunately, it turns out that I’m not the only one, and that there’s a story behind the story: The WSJ editorial board is severely biased against climate science.  Another letter, signed by 255 real scientists (all members of the US National Academy of Science), dealing with the realities of climate change, was flat-out rejected by the WSJ. It’s a shame that the first factually dubious letter got so much of the press. Read more about the whole debacle in this Forbes article.
  • A recent Psychological Science article contains the results of a study  on more than 15000 UK inhabitants, as well as on a group in the US, that shows that lower cognitive ability predicts greater prejudice, manifesting in for example right-wing ideologies or homophobia. Ha ha.
  • In another not-so-surprising turn of events, it turns out that alcohol does indeed make you more creative.  FrancoisMalan.com sent me, albeit indirectly, this Consciousness and Cognition article, titled Uncorking the muse: Alcohol intoxication facilitates creative problem solving. Note the creative title, draw your own conclusions about the state of intoxication required for authoring a successful scientific article. Ahem.

Good science should be reproducible. Judging by the blood alcohol content and weight tables on Wikipedia, I should be more creative between 3 and 4 beers, a result I will certainly try to confirm during my next WHV writing session. It is left as an exercise to the reader to calculate my body weight based on this information.

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Slow philosophy. [Weekly Head Voices #64]

Posted on January 28, 2012 | 3 Comments

I’ve spent days writing this post in my head, and now it’s taken more than two weeks to get done. It’s not that I have something complicated or difficult to tell you, it’s just that I was privy to three absolutely awesome weeks of vacation in an undisclosed location to the very far south of my current coordinates, during which I attained ultimate levels of relaxation that caused my brain to shut-down large parts of itself. The only parts that managed to remain online were those dedicated to slow living, appreciation of people and surroundings and, finally, deep thought. My brain is currently taking its sweet time to come fully online again.

Oh well.

I did bring you a photo of Disa Uniflora, a special little orchid that likes living close to little waterfalls, for example just like the one that can be found on your hike up Leopard’s Kloof. Look:

Pretty Disa in Leopard's Kloof.

As is usual for sunny vacations during which we transition into a new year, a number of realizations and resolutions slowly bubbled up to the surface from some usually submerged part of my consciousness. I’d like to share some of them with you:

Life goals are bad. Let’s stop doing them. The problem is that humans are awesome at adaptation. Unfortunately this means that two days after having celebrated your latest epic life achievement, you’re bored with it. Some people even get bored with their lives in general, and then buy a leather jacket and a motorbike because they think that that’ll somehow solve the problem, only to get bored with their new image soon after. Fortunately, there is a way to sidestep the problem quite elegantly. Don’t set life goals, but rather set life directions. Instead of defining the point that you want to go towards, define your preferred direction. If you do it right, you’ll pass those points as you go along in any case, except you won’t land in the depressing goal vacuum right after reaching the point that you’ve been moving towards for so long, because you’re motoring along in a direction, and that’s what’s important. To those more mathematically inclined, ignore the life function, rather design its derivatives. This is a practical way of applying the well-known addage that life is about the journey, and not the destination.

Disconnecting is good. I do love the internet. I also think it’s one of the most awesome achievements of the whole of humankind ever, and it really empowers humans everywhere. I’m more or less addicted to being constantly connected, having constant access to the sum total of human knowledge and in principle to a large percentage of my fellow humans. However, there is a fine line between having constant access and being constantly interrupted by too many not necessarily valuable packets of data. We’re very vulnerable to this latter situation, due to our brain chemistry being optimized by all of evolution for novelty, and for foraging, so we keep on clicking on “refresh”, and our ears perk up whenever a phone goes “ping”. However, when not being interrupted, human thought gets the room it needs to grow and deepen, into importance and into impact.

I’ve also been thinking about consumption. I’d like to do much less of that, and when I do, I’d prefer to consume quality. In my thoughts, it was primarily about information, but it applies to many other things. It’s an ongoing process.

I’m adding all of these to my growing list of little life tips. As regular readers of this blog, you know some of these by now: Keep on  striving for balance and harmony, focus on the now, create value, study your manual, and, most importantly, drink lots of coffee. One day I’m going to combine them all nicely into the Unified Dogma of  Me (UDM) and then I’ll start a sect. Seriously though, it’s quite challenging keeping these and the other ones in the front of my mind all the time. The UDM would definitely help. And I could start a sect.

One more thing before you go: I came across this recent PNAS article via the science pages of my newspaper. William Ratcliff and colleagues at the Michigan State University showed with a terribly simple experiment that single-celled yeast cells can evolve into multi-cellularity quite quickly. Pouring yeast from one test tube into another about 60 times, an action that favours, or selects, yeast cells that clump together, resulted into a multi-celled organism: The clumped together yeast cells started showing internal specialization. Pretty awesome results, especially considering the fact that you could probably reproduce this experiment in your kitchen.

That’s all for this week kids. Have fun evolving!

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Astropsychonaut. [Weekly Head Voices #63]

Posted on December 3, 2011 | 5 Comments

I recently came across this hauntingly beatiful time-lapse view of Earth made from the ISS (the International Space Station! Yes, we have one!):

Watching this, my nostalgia flared up. You see, I’ve been addicted to science fiction ever since I can remember. It started with Buck Rogers, and the original Star Trek, and only got much worse when I discovered Arthur C. Clarke, Ray Bradbury, Isaac Asimov and Douglas Hill. I find Kubrick’s 2001 and even the sequel movie 2010 beautiful.

For the longest time, I wanted to be an astronaut. I think I still do.

I believe I might have thought that my career plans would be seen as childish when I wrote this short piece for school detailing my life plans when I was 7 or 8 (late eighties, not saying anymore):

My life plans as a 7 or 8 year old. My brother found this somewhere and put it on facebook. I wonder what it would be like to go back in time and explain that concept to myself.

For those of you without the required Afrikaans background, here is a short translation, as true as possible to the original:

When I gow up, I’d like to work with computers, because then I’ll become really smart and I’ll know more about the outdoors and nature. As I grow older, I’ll become a professor, because perhaps I’ll find a cure for leprosy and after that I’m going to study to be a millionaire, because then I’ll go abroad or around the world.

Not a bad plan for a 7 or 8 year old, if you don’t mind me saying so myself. This note has in fact reminded me that there’s still more than enough decisions to be made and work to do, so I’ll have to postpone becoming an astronaut for a little while longer. At least by the end I’m going to end up a rich traveller, which is probably not a bad deal.

In other news this week:

  • It seems like just the other day that I made my 400th connection on LinkedIn. I’m happy to report that I broke the 500 barrier two weeks ago, and now I have that fancy looking “500+” next to my name. I finetuned my headline to celebrate the occasion, after which I promptly got approached by a head hunter.
  • Jonathan Dyer is the guru of facial hair. Check out all the beard types and accompanying facial expressions that he has mastered. Yes, that’s a hint of jealousy that you detect in my writing.
  • More reasons to love the coffee: Giving rats the equivalent of what a human gets after two cups of coffee, the caffeine caused nerve cells in a certain region of the hippocampus to show a significantly bigger burst of activity. These strengthened synapses might have a role in learning and memory. Read this summary on boingboing and the article on Nature Neuroscience.
  • In an exceptionally disappointing move, South African parliament has passed a new secrecy bill that gives members of government the power to declare information a state secret, thus deterring honest-keeping journalists and other whistle-blowers with a 25 year jail sentence. Desmond Tutu sums it up nicely when he says that this makes the State answerable only to the State.

If this new bill manages to make it through the constitutional court as well, the country is going to take a giant step backwards. At least we’ll have facedrink to cheer us up again!

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You have beautiful ize. [Weekly Head Voices #62]

Posted on November 19, 2011 | 1 Comment

I completely lack the genes that usually cause human males to have a thing for cars, but I do love Top Gear. This trailer for a fictional 60s detective show, made by Jeremy Clarkson, James May and Richard Hammond, encapsulates many of the reasons why:

Moustaches, guns, girls, cars and Hammond karate-chopping the porter at Playboy Club London for absolutely no reason whatsoever at 41 seconds can be nothing but 100% pure AWESOME.

It’s crazily busy at the moment, for a large part due to the extra load of having to teach and revamp, AT THE SAME TIME, the TU Delft’s postgraduate Data Visualization course. I’ve chucked out the written exam and the structured lab work, and exchanged it for paper reading, class discussion and four independent projects, inspired by positive experience with my Medical Visualization Ninja Training Course (third year in the running, Ninjas all over the place!), the postgraduate InfoVis course I gave at Stellenbosch and of course the teaching materials of esteemed colleagues at UBC, Harvard, Berkeley and Stanford. With a bit of luck, we will soon deliver a whole class of new-style DataVis Ninjas.

At a recent conference, I ran into an erudite half-British colleague from the far North, who in a few minutes almost managed to turn my world into rubble. You see, I’ve always proudly promoted the use of the -ise forms of certain words, such as visualise, realise, colonise and so forth, these being examples of British English. (Obviously, I adapt when American English is required.)

It turns out that, as is the case with life in general, it’s unfortunately not as simple as that.

It turns out that many of the -ise words are originally from the Greek or the Latin with “-ize” endings, and therefore the Oxford spelling prefers their use, although it accepts the “-ise” forms as well. On the other hand, the Cambridge University Press, as well as the mainstream media and most of the public in Britain and the former colonies, has a strong preference for the “-ise” forms. Certain other words like for example advertise, advise and surprise always take the “-ise” form in British English.

So now I’m faced with this conundrum. It would otherwise not have been such an issue, but the words “visualise” and “visualisation” come up quite often during my work day. Sticking to “-ise” is easier and still correct when in British English mode, but “-ize” for those few words of Greek  and Latin origin could perhaps be considered more correct, and has the great advantage of allowing me to standardise on “visualize” as the canonical form of that important term. However, then I would run the risk of confusing the “-ize” and the true “-ise” words in Oxford English, potentially leading to painful embarrassment at the many cocktail parties that I frequent.

So you see, the Universe is just full of mysteries. Another mystery that has plagued humankind for decades, is what would happen if Stephen Hawking and Albert Einstein got involved in a rap battle. Well humankind, wonder no more:

Ok kids, thank you for tuning in again. Have a great week, I hope to see you again soon!

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