Archive for the ‘Science’ Category

RIP: Sam Roweis

Wednesday, January 13th, 2010

It’s reported that NYU professor Sam Roweis jumped to his death last night.

From an outsider’s perspective, I don’t think anybody saw this coming.  I don’t wish to be insensitive, but I’m struck that even his death makes a point about machine learning…

Sam leaves behind a wife and newborn twins, and my heart goes out to them.

1859 Printing of The Origin of Species

Friday, January 1st, 2010

Emily had the opportunity to look at this book recently whilst visiting a private research library. It’s an original first edition printing of The Origin of Species by Charles Darwin (as the first printing, it’s technically entitled On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life). I’m envious that I didn’t get to see it, but she took these pictures for me.



Reflections on MPLS 2009

Monday, December 14th, 2009

It has been well over a month since I attended the MPLS 2009 conference and participated in the panel on Emerging Technologies and Business Architectural Impact, and it is about time (over-due) that I posted my thoughts.

Foremost, I should say Thank You to Monique Morrow for organizing such a great panel and inviting me to participate.  I’ve known Monique as a colleague and friend for a while now, and whenever we have chance to meet she never fails to impress me.  In the context of this panel, I was dumbfounded at the quality and breadth of the other participants that she secured.  Monique moderated the discussion such that the panel’s large size was a benefit rather than liability.  As a panel we managed to cover multiple topics with decent depth, and were each allowed to illustrate our different perspectives.  I’ve been told by several audience members that it was an excellent panel, and from my (admittedly biased) perspective I must agree.

As for the discussion itself, I very much enjoyed participating.  Considering the quality of the other panelists, I am honored to have been included; each of the other panelists are recognizable for their contributions and role in the industry.  Given my respect for the other panelists, I tried to enter the conversation prepared and did not hold back any of my significant thoughts during the discussion… for better or worse.

Some of my comments may have included points that were controversial.  For instance, one theme that ran through the entire discussion was the complex balance of cost vs. capacity vs. features in network devices.  I challenged comments from Vijay Gill (of Google) and Donn Lee (of Facebook) which argued in favor of very-large dumb switches. ("dumb" is my word choice, but I suspect they would agree)  From their perspectives, as engineers for large web properties, they need to scale out single-tenant environments to support Internet-scale traffic loads and a simple L2 or L3 switch would enable their topology.  But, I argued, they were "weird" in their requirements, which are unique to large web properties.  Service providers and enterprise environments need more features in order to deal with the complexity and changing "customer" requirements they face daily.

After the panel I had the opportunity to chat with Vijay and Donn, and they had an interesting view of the cost / capacity / features debate.  Their comments deserve some focus, so look for a future post on this topic.

Another topic was the relevance of standards, which wasn’t particularly controversial but which caused some interesting comments.  My point was that standards are critical to the industry, but in the same way that fundamental research is critical to science and technology (broadly speaking).  We need to put effort into standards because it brings people together and promotes the state of the art.  But we also need to recognize that functioning interoperable implementations are what matter, regardless of the standards conformance, etc.  In other words, standards bodies should work diligently but not take themselves too seriously in the process.

Regardless, I hope to be included in future panels such as this one (at the MPLS conference and/or elsewhere) and I’m glad to have had the opportunity at MPLS 2009.  I would absolutely recommend that you attend future panels by Monique, at MPLS 2010 or otherwise, whether I’m taking part or not. Though, obviously, it would be better with my opinion included. ;)

It’s “Climate Change”, stupid.

Monday, March 9th, 2009

A friend sent me a link to an OpEd piece in the Boston Globe entitled Where’s Global Warming? and I have to say I’m surprised. Why are people still so confused?

In my opinion, one of the biggest problems is wording. The term “global warming” is a misnomer. Scientists are really talking about “climate change” compared to modern norms.

Unfortunately, it’s too easy for people to hear “warming” and think it doesn’t apply, thereby dismissing the entire topic. It’s even easier for people to dismiss “climate change” because they don’t notice it themselves. I.e. “the weather doesn’t seem that different to me!” But thinking this way is short-sighted and foolish.

What we need to worry about is climate change to such a degree that our existence (or mode of existence) is threatened. Given what we know, it would probably happen (at least in part) as a result of man-made “greenhouse gasses” (molecules that hold large amounts of energy when heated/irradiated). But it could be related to all sorts of things. Is climate change also related to intensity or duration of wars? High-altitude flights? UFO visits in the middle of the night? ;) Or, more seriously, geothermal events and/or oceanic patterns? Probably all of the above, but who knows?

Science is not a god. It is neither perfect nor exact. But it’s better than a raw opinion. Raw opinion and the biased speculation that “supported” it has confused man for ages. The world was once thought to be flat. The sun was once thought to orbit the earth. Etc. Etc. Etc. Fortunately we have developed a view of reality that is based on observation and logic: science. It’s not perfect, just as our ability to observe and our ability to rationalize logically are imperfect. But random skepticism is not a better choice.

As for Gore… well, who knows. But at least people are thinking about climate change now. That deserves some applause.

LHC and the New Universe

Wednesday, September 10th, 2008

In honor of the successful LHC First Beam (webcast available at http://webcast.cern.ch/), and looking forward to the First Collision coming in about a month, here is a quote from The Restaurant at the End of the Universe by Douglas Adams:

There is a theory which states that if ever anyone discovers
exactly what the Universe is for and why it is here, it will
instantly disappear and be replaced by something even more
bizarre and inexplicable.

There is another theory which states that this has already
happened.