Facebook Grows Up:

What does Facebook get from this? If all goes well, much of what people do on the Internet will be accomplished within Facebook. Instead of eBay, you can buy in Facebook's marketplace. Instead of iTunes, there's iLike. In other words, Zuckerberg wants to keep you-student, graduate or graybeard-logged on to Facebook, organizing virtually everything you do via the social graph.

AOL, PointCast, the portal sites. I think the past 10 years has shown that you better focus on what you can do well before doing everything.

Labels: Technology

Recently I resubscribed to the Safari online tech library (a lot of O'Reilly titles, but not exclusively) after a hiatus of a few years. Previously their system was basically like Netflix, you could put some items on your bookshelf contingent upon your subscription level. Now they have a $40/month level where you have full access to their whole library! Of course, there's really nothing in there that you couldn't find through clever google searches, but if time is $ it really does make it a lot simpler to have it all in one place.

Labels: Technology

Returning to a favorite theme here -- debunking the balderdash that recent human evolution is cultural rather than biological -- consider how simple technological changes can influence human biological evolution. Take musical instruments: in an environment with no musical instruments, and thus essentially no music, you'd never know who were the rockstars (if male) or the dancing queens (if female). With no way to detect these sexy phenotypes, natural selection could not change the frequencies of alleles that contributed to them. But once the presence of musical instruments becomes a predictable feature of the environment, suddenly there's a pressure to be a good performer, and so traits both physical (dexterity, agility) and psychological (extraversion, emotional volatility) will increase, at least up to a point where any further increase would be a bad bet for newcomers as they crowd an already saturated niche. It's hard to show off when everyone else shows off in the same way.

Now, we commonly urge youngsters to "find their niche," yet many people ignore the obvious corollary of this ecological phrase, namely that whatever cultural processes spawn new niches will also result in a change in frequency of alleles implicated in the traits needed to thrive therein. Unlike Darwin's finches, humans don't need to expand into an unsettled archipelago to undergo adaptive radiation -- we can stay fixed geographically but broaden the range of niches in our "social-cultural space."

At my personal blog, I sketched out a reason for why technological progress tends to be more bustling than progress in more abstract disciplines like geometry, where progress appears to stagnate for quite awhile until "the next big thing" comes along. Basically, the purer arts and sciences are the hobbies of weirdos, whereas technology is usually a matter of life and death: i.e., outperforming the technology of your adversaries. This literal arms race keeps the pace of technological progress much more frenzied than in other cultural areas. The key is that new shields, spears, guns, and ships don't affect the fitness of just soldiers, because most of this new stuff will be ripped off by others to innovate civilian life.

For instance, there would be no common cars if militaries had not pioneered the technology of interchangeable parts and mass assembly-line production for ships and firearms. Nor could their interiors and exteriors be held together were it not for the common use of steel, an alloy whose first modern production method -- the Bessemer Process -- resulted from its inventor's efforts to more efficiently produce firearms for the Crimean War, and whose Captain of Industry (Andrew Carnegie) made his fortune through contracts to build warships for the US Navy. And since the widespread availability of the automobile, many males have carved out a niche whose appeal to females centers around owning a car when other males don't (the guy in 10th grade with his own car) or using their car to signal machismo (drag racers). So, to paraphrase a related slogan on technological changes fueling biological changes: howitzers hatched heart-throbs in hot rods.

Labels: babes and hunks, maintenance of variation, Technology

According to the editors of Nature.

[W]hat has been universally deemed as unacceptable is the pursuit of human reproductive cloning - or the production of what some have called a delayed identical twin. Here, the two issues that have dominated the discussion have been dignity and safety. There is a consensus that dignity is not undermined if a human offspring is valued in its own right and not merely as a means to an end. But there is no consensus that we will eventually know enough about cloning for the risks of creating human clones to be so small as to be ethically acceptable.

The debate may seem to have been pre-empted by prompt prohibition. But as the science of epigenetics and of development inevitably progresses, those for whom cloning is the only means to bypass sterility or genetic disease, say, will increasingly demand its use. Unless there is some unknown fundamental biological obstacle, and given wholly positive ethical motivations, human reproductive cloning is an eventual certainty.

Labels: Cloning, Technology