On Perfect Mornings
Stan Getz’ version of ‘Early Autumn’ is to me the definitive take on this standard, though so many fine musicians have attempted it that I’m sure to draw an argument from jazz buffs. But every year when the leaves have just begun to turn, the Getz interpretation runs through my mind on my morning walk, as it did today. A fine breeze was in the air and it carried the scent of approaching rain. The leaves wrapped the scene in muted gold and vermilion, not as bright as in some years, but lovely just the same.
So perfect was the moment that it called up a quote from J.B Priestley that I only imperfectly remembered. When I got back to my desk, I looked up the exact wording:
I have always been delighted at the prospect of a new day, a fresh try, one more start, with perhaps a bit of magic waiting somewhere behind the morning.
Early CoRoT Results Available
Early results from CoRoT are now appearing in a special issue of Astronomy & Astrophysics (Vol. 506 No. 1), running this week with over fifty papers made available online. Launched in late 2006, CoRoT has detected seven planets that have been confirmed by ground-based follow-up observations, a challenging process that has produced such interesting places as CoRoT-7b, whose discovery is recounted and mass discussed in these papers (Didier Queloz and team calculate the mass at about five times that of Earth).
Based on density calculations, CoRoT-7b should be a rocky planet, the first confirmed to date, and it was subsequently joined by a second planet in the same system, a super-Earth of about eight Earth masses. The range of papers here extends beyond exoplanet hunting to astroseismology, a primary goal of mission planners. Detecting and quantifying oscillations in red giants and other stellar types shows how complicated these processes can be. It’s heartening to note that CoRoT is slated to operate until 2013.
The Mind in the Machine
Wouldn’t a human brain translated somehow into a computer environment simply go mad, being a consciousness evolved for an environment so radically different in terms of its inputs that adaptation outside a physical body would be impossible? Athena Andreadis considers the matter in Ghost in the Shell: Why Our Brains Will Never Live in the Matrix, published last week at h+ Magazine. Her essay is an elegant reminder that biological systems and engineered technologies are not necessarily compatible:
A human is not born as a tabula rasa, but with a brain that’s already wired and functioning as a mind. Furthermore, the brain forms as the embryo develops. It cannot be inserted after the fact, like an engine in a car chassis or software programs in an empty computer box.
An uploaded brain could, the thinking goes, cope with the immense times and distances involved in interstellar travel, thus opening up the stars to our electronically adapted selves. But while we may be able to tweak the brain to stay sharp beyond the conventional human lifespan, Athena will have none of the notion that uploading a consciousness will be the way to immortality.
Large portions of the brain process and interpret signals from the body and the environment. Without a body, these functions will flail around and can result in the brain… well, losing its mind. Without corrective “pingbacks” from the environment that are filtered by the body, the brain can easily misjudge to the point of hallucination, as seen in phenomena like phantom limb pain or fibromyalgia. Additionally, processing at light speed will probably result in madness, as everything will appear to happen simultaneously or will change order arbitrarily.
Just as seriously, the University of Massachusetts biologist speculates that without the physical context, we are endangering our sense of empathy, without which we are “at best idiot savants, at worst psychotic killers.” Andreadis considers the mind an emergent property, an artifact of its brain. Transferring it demands the brain that houses it, without which continuity of consciousness is lost. No immortality there — the original mind still faces death no matter what the uploaded one does.
But what about replacing a brain in a living person, renewing our minds even as we rebuild our 100 billion neuronal processors? Even using embryonic stem cells, the take here is that cell replacement will be slow and small-scale in order to make continuous consciousness possible and to preserve existing neuronal and synaptic networks. Thus renewing a single human brain could be such a lengthy process that it never catches up with the aging of the body. Such efforts, though, may well pay off in specific areas, such as the treatment of neurodegenerative diseases.
Long lifespans could lead to long-term crewed space expeditions, but this essay notes we’ll need tools to repair mutations caused by cosmic radiation if we plan to spend long periods in environments outside the Solar System. Andreadis doesn’t rule out keeping a brain functional for periods longer than our current lifespan, but her doubts about mind transfers are pungent reading for those pondering a Matrix-like future inside the machine.
Have a look at the Pleiades the next time viewing conditions are good. When the light you’re seeing left these stars, Copernicus had just published De revolutionibus orbium caelestium (1543), giving the Sun rather than the Earth primacy of place in the universe. Now look at the Orion Nebula, whose light left as the Roman Empire was crumbling. Each astronomical vista takes us on a chronological journey, as SEED Magazine shows us in a slide show based on Michael Benson’s new book Far Out: A Space-Time Chronicle (Abrams, 2009).
The images are lovely, and by the time you’ve worked through to the Hercules Cluster, you’re dealing with light that left when the most complex life Earth had to offer was the trilobite. That would be 485,000,000 years ago, and the connection of Earthly chronology with celestial spectacle refreshes our perception of time and space as entwined. That’s something we take intellectually for granted but sometimes need to experience in new ways. Like the dazzling departure from the Solar System in the film version of Contact, these images give the jaded a much needed ‘sense of wonder’ boost.
Rosetta Swingby in November
Keep an eye on the Rosetta Blog as the ESA comet-investigating spacecraft swings by the Earth to gain a gravity assist that will begin the final leg of its ten-year journey to comet 67/P Churyumov-Gerasimenko. This is the last of Rosetta’s four gravity assists and the third Earth swingby, during which Rosetta will study the Earth-Moon system from its unusual perspective. Closest approach is 0745 UTC on November 13, with a trajectory correction burn just completed. More on the Rosetta mission site.