Showing posts with label Global Species. Show all posts
Showing posts with label Global Species. Show all posts

Wednesday, July 20

The Aliens are Us


On a geologic timescale, the emergence of the human “dataome” is like a sudden invasion by extraterrestrials or an asteroid impact that precipitates a mass extinction...

Something very old, very powerful and very special has been unleashed on Earth.

Humans are strange. For a global species, we’re not particularly genetically diverse, thanks in part to how our ancient roaming explorations caused “founder effects” and “bottleneck events” that restricted our ancestral gene pool. We also have a truly outsize impact on the planetary environment without much in the way of natural attrition to trim our influence (at least not yet).

But the strangest thing of all is how we generate, exploit, and propagate information that is not encoded in our heritable genetic material, yet travels with us through time and space. Not only is much of that information represented in purely symbolic forms—alphabets, languages, binary codes—it is also represented in each brick, alloy, machine, and structure we build from the materials around us. Even the symbolic stuff is instantiated in some material form or the other, whether as ink on pages or electrical charges in nanoscale pieces of silicon.

Altogether, this “dataome” has become an integral part of our existence. In fact, it may have always been an integral, and essential, part of our existence since our species of hominins became more and more distinct some 200,000 years ago. This idea, which I also pursue in my upcoming book, The Ascent of Information, leads to a number of quite startling and provocative proposals.

For example, let’s consider our planetary impact. Today we can look at our species’ energy use and see that of the roughly six to seven terawatts of average global electricity production, about 3 percent to 4 percent is gobbled up by our digital electronics, in computing, storing and moving information. 

That might not sound too bad—except the growth trend of our digitized informational world is such that it requires approximately 40 percent more power every year. Even allowing for improvements in computational efficiency and power generation, this points to a world in some 20 years where all of the energy we currently generate in electricity will be consumed by digital electronics alone.

And that’s just one facet of the energy demands of the human dataome. We still print onto paper, and the energy cost of a single page is the equivalent of burning five grams of high-quality coal. Digital devices, from microprocessors to hard drives, are also extraordinarily demanding in terms of their production, owing to the deep repurposing of matter that is required. 

We literally fight against the second law of thermodynamics to forge these exquisitely ordered, restricted, low-entropy structures out of raw materials that are decidedly high-entropy in their messy natural states. It is hard to see where this informational tsunami slows or ends.  READ MORE...