Worse still, even if we had the ability to take a snapshot of all of the brain’s 86 billion neurons and then to simulate the state of those neurons in a computer, that vast pattern would mean nothing outside the body of the brain that produced it. This is perhaps the most egregious way in which the IP metaphor has distorted our thinking about human functioning. Whereas computers do store exact copies of data – copies that can persist unchanged for long periods of time, even if the power has been turned off – the brain maintains our intellect only as long as it remains alive. There is no on-off switch. Either the brain keeps functioning, or we disappear. What’s more, as the neurobiologist Steven Rose pointed out in The Future of the Brain (2005), a snapshot of the brain’s current state might also be meaningless unless we knew the entire life history of that brain’s owner – perhaps even about the social context in which he or she was raised.
Think how difficult this problem is. To understand even the basics of how the brain maintains the human intellect, we might need to know not just the current state of all 86 billion neurons and their 100 trillion interconnections, not just the varying strengths with which they are connected, and not just the states of more than 1,000 proteins that exist at each connection point, but how the moment-to-moment activity of the brain contributes to the integrity of the system. Add to this the uniqueness of each brain, brought about in part because of the uniqueness of each person’s life history, and Kandel’s prediction starts to sound overly optimistic. (In a recent op-ed in The New York Times, the neuroscientist Kenneth Miller suggested it will take ‘centuries’ just to figure out basic neuronal connectivity.)
Meanwhile, vast sums of money are being raised for brain research, based in some cases on faulty ideas and promises that cannot be kept. The most blatant instance of neuroscience gone awry, documented recently in a report in Scientific American, concerns the $1.3 billion Human Brain Project launched by the European Union in 2013. Convinced by the charismatic Henry Markram that he could create a simulation of the entire human brain on a supercomputer by the year 2023, and that such a model would revolutionise the treatment of Alzheimer’s disease and other disorders, EU officials funded his project with virtually no restrictions. Less than two years into it, the project turned into a ‘brain wreck’, and Markram was asked to step down.
(via screamydreamy)
because i’m really tired of rhetoric regarding egypt on this website, and because i’m tired of repeating the same things over and over, here’s a post of things every person who posts something about egypt should be aware of before opening their big fat mouths:
- egyptians…
(via degenerate-perturbation)
Report: Skull discovery could rewrite early human evolution
NBC News: The human family tree may be much simpler than previously thought, a newly released report finds.
The report, which was sparked by the discovery of a 1.8-million-year-old skull, suggests that specimens that were previously thought to represent several different human species might actually be different-sized individuals of the same species.
The fossil, known as Skull 5, was found in separate pieces at an evacuation in Dmanisi, Georgia. The skull had a relatively small braincase and a larger face. According to researchers, if the braincase and face had been found at different locations, they would have likely been attributed to different species.
Photo: An oddball skull from a site in the former Soviet republic of Georgia has sparked a debate over early human evolution. (Georgian National Museum)
