Sunday, October 25, 2015

Random Thoughts on Machines and Life


After reading Jerry Kaplan’s book (reviewed in my previous post), I dived into The Second Machine Age by Erik Brynjolfsson and Andrew McAfee. While sharing some of the same concerns as Kaplan, particularly the problem of widening spread between haves and have-nots, this book is significantly more optimistic. The book is subtitled “Work, Progress and Prosperity in a Time of Brilliant of Technologies”. Their conclusion is that humans can find their niche in a Race With the Machine, as opposed to a Race Against the Machine, the title of their earlier book. The niche is in ideation and novelty, generating new good ideas and finding novel recombinations of existing ideas while leveraging technology. The last few chapters of the book also include suggestions for individuals, corporations and governments.

The problem of spread may be at a critical juncture. The authors build up the case first using Moore’s Law, followed by mass digitization, the exponentially widening payout gap between the number one product and second-best, thus leading to an economical stratification based on superstars and everyone else. Instead of something closer to a normal (or Gaussian) distribution where the mean and median are close to the same, the exponential speed of technology has moved us into a power law distribution. But now the median is much lower than the mean, and the majority will have (far) below average wealth.

In their policy recommendations, they argue for a correlation between a strong education program for all that keeps up with technology to keep economic inequality at bay. A study is cited whereby improved test scores (using PISA for example) is strongly correlated with economic growth. Technology seems to be the savior in this regard, and the usual arguments for how technology-enhanced education will be a positive feedback loop towards superior learning are presented without much detailed analysis. The authors call for a “Grand Bargain” – having higher teacher salaries and more accountability. I’m all for higher teacher salaries, but I think many of the present efforts at accountability are wrong-headed. Here’s an optimistic summary from the authors.

“We have little doubt that improving education will boost the bounty by providing more of the complementary skills our economy needs to make effective use of new technologies. We’re also hopeful that it can help reduce the spread, especially insofar as it’s caused by skill-biased technical change. That’s largely a matter of supply and demand. Reducing the supply of unskilled workers will relieve some of the downward pressure on their wages, while increasing the supply of educated workers diminishes the shortages in those areas. We also think creativity can be fostered by the right educational settings, boosting the prospects not only of the students but also society as a whole.”

I’m in agreement with the last sentence, and I’ve been working on coming up with some creative principles to foster, not just in my classes, but perhaps one that changes the culture around me too! That’s a subject for another post. Today I’d like to ponder something a little crazier.

Is our system of networked computers “alive”? I suppose it depends on how you define life. If asked to define life, most folks will think about some of the characteristics of extant life from a biological point of view. Wikipedia has a nice summary of these seven characteristics. However, there are difficulties with such definitions, as there always seem to be odd exceptions to the rule that pop up. For example a mule is sterile and unable to reproduce but we would certainly consider it to be alive. Are viruses alive? More generally, are parasites alive?

The ability to adapt and evolve seems to be important, as is a metabolic system of some sort that transduces energy. From a thermodynamic point of view, perhaps life is a system that more efficiently disperses energy over both space and time. Certainly one could connect the dots that early cellular evolution was concerned with improving energy transduction. The better an organism was at collecting and using energy, the better its odds of survival in a changing environment as food or energy sources change. One could even paint a narrative connecting the rise of multi-cellularity to climax ecosystems as a story of energy use and dispersal. Human beings might be the ultimate organisms to transduce energy with transformative leaps as the steam energy is invented, or electricity is harnessed. Computers were once humans. Now they are machines, networked together for increasing interconnectivity, transducing more energy in the process. If James Lovelock’s Gaia is a living organismic system, perhaps so are our networked computational clouds.

Sure, we could pull the plug and stop the electrical juice from powering our computers and they would be “dead”. But if the sun went dark, so would we and most other living things on earth unless we could find a different source. Perhaps we’d have sufficient technology to form the underground city of Zion (from the Matrix) and make use of geothermal energy – although we would be much reduced in numbers and would need to invent machines to effectively transduce this energy source for our use to survive. Are all computer programs like viruses? When shut down, they go dormant. But when turned on and connected, behold they alive! We have backup systems that copy our files just in case our computer “dies”.

Perhaps “artificial life” isn’t so artificial after all. Maybe we could distinguish inorganic and organic life, just like the chemists of old distinguished organic and inorganic chemistry. But we chemists know that there is no hard and fast distinction, and in fact much of the interesting chemistry takes place at the edges of these two fields. As we become cyborgian, tethered to the computing systems that have become a natural extension of ourselves, perhaps that’s where all the action is. Certainly that’s where venture capitalists are putting their money and where we have seen the most gains in economic wealth, for good or ill. Here we are in the Second Machine Age. Will we Race against, Rage against, Race with, or become a joined Race with the machine?

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