apparently, the idea i’ve ruminated on in a couple posts is now scientific and has a name (neoteny). there’s a post about it on slashdot with a TON of comments.
(ht to bob carlton for this link)

Serious Study: Immaturity Levels Rising
Jennifer Viegas, Discovery News

June 23, 2006 —The adage “like a kid at heart” may be truer than we think, since new research is showing that grown-ups are more immature than ever.

Specifically, it seems a growing number of people are retaining the behaviors and attitudes associated with youth.

As a consequence, many older people simply never achieve mental adulthood, according to a leading expert on evolutionary psychiatry.

Among scientists, the phenomenon is called psychological neoteny.

The theory’s creator is Bruce Charlton, a professor in the School of Biology at the University of Newcastle upon Tyne, England. He also serves as the editor-in-chief of Medical Hypotheses, which will feature a paper outlining his theory in an upcoming issue.

Charlton explained to Discovery News that humans have an inherent attraction to physical youth, since it can be a sign of fertility, health and vitality. In the mid-20th century, however, another force kicked in, due to increasing need for individuals to change jobs, learn new skills, move to new places and make new friends.

A “child-like flexibility of attitudes, behaviors and knowledge” is probably adaptive to the increased instability of the modern world, Charlton believes. Formal education now extends well past physical maturity, leaving students with minds that are, he said, “unfinished.”

“The psychological neoteny effect of formal education is an accidental by-product — the main role of education is to increase general, abstract intelligence and prepare for economic activity,” he explained.

“But formal education requires a child-like stance of receptivity to new learning, and cognitive flexibility.”

“When formal education continues into the early twenties,” he continued, “it probably, to an extent, counteracts the attainment of psychological maturity, which would otherwise occur at about this age.”

Charlton pointed out that past cultures often marked the advent of adulthood with initiation ceremonies.

While the human mind responds to new information over the course of any individual’s lifetime, Charlton argues that past physical environments were more stable and allowed for a state of psychological maturity. In hunter-gatherer societies, that maturity was probably achieved during a person’s late teens or early twenties, he said.

“By contrast, many modern adults fail to attain this maturity, and such failure is common and indeed characteristic of highly educated and, on the whole, effective and socially valuable people,” he said.

“People such as academics, teachers, scientists and many other professionals are often strikingly immature outside of their strictly specialist competence in the sense of being unpredictable, unbalanced in priorities, and tending to overreact.”

Charlton added that since modern cultures now favor cognitive flexibility, “immature” people tend to thrive and succeed, and have set the tone not only for contemporary life, but also for the future, when it is possible our genes may even change as a result of the psychological shift.

The faults of youth are retained along with the virtues, he believes. These include short attention span, sensation and novelty-seeking, short cycles of arbitrary fashion and a sense of cultural shallowness.

At least “youthfulness is no longer restricted to youth,” he said, due to overall improvements in food and healthcare, along with cosmetic technologies.

David Brooks, a social commentator and an op-ed columnist at The New York Times, has documented a somewhat related phenomenon concerning the current blurring of “the bourgeois world of capitalism and the bohemian counterculture,” which Charlton believes is a version of psychological neoteny.

Brooks believes such individuals have lost the wisdom and maturity of their bourgeois predecessors due to more emphasis placed on expertise, flexibility and vitality.

a few thoughts (non-scientific — just marko thoughts):

- i think there are two overlapping phenomenon being addressed in all this stuff. the first, which isn’t new really, is the elongation of adolescence. studies have already shown that adolescence has extended in both directions (down, to about 10 or 11, and up, to about the mid-20s). we talked about this in the CORE a year ago (i think some of it is in chap clark’s book, ), how adolescence, when it was first identified (early 1900s) was a period of about 2 years (14 - 16-ish). by the 70s, it had extended to the popularly understood definitions of the teenage years, lining up with our american educational systems of junior high and high school, and about 5 years long (13 - 18). but now, adolescence is a 12+ year journey of wrestling with the adolescent questions of identity, autonomy and belonging. it seems to me that this study/theory (in the article above) is primarily addressing this extended adolescence, as it doesn’t have much to say about the dissolving of the generation gap, or about 30-somethings and 40-somethings who choose a different set of values, more aligned with youth (and in my opinion, often — thought not always — better).

- i’m not jazzed about the writer’s use of the word “maturity”. maturity is often wrongly understood as behavior that is responsible and beyond one’s years. but maturity is actually behavior (and thought processes) that are appropriate to the age of the individual. we don’t blame an 8 year-old for acting like an 8 year-old. a ‘mature’ 8 year-old exhibits behavior that is appropriate for an 8 year-old. an ‘immature’ 8 year-old exhibits behavior of a 6 year-old, for example. that said, behavioral norms are not stagnant over time. today’s 18 year-olds, living 100 years ago, would have been considered extremely immature. but our behavioral expectations for them have shifted. this isn’t bad; it just is. our behavioral norms for 70 year-olds have shifted also! so part of what i think is going on here (which i’m surprised an “evolutionary psychologist” wouldn’t surface), is the current tension and wrestling around what our behavioral norms are for 20-somethings.

- this has implications for the church. are we to stand around and point fingers at 20-somethings and label them immature? or are we to meet them where they are and encourage growth (ooh, sounds like jesus)? i know i’m simplifying this unfairly. and i’m not suggesting we merely say “hey, who’s to say what immaturity is? to each his own.” clearly, this has spill-over implications for discussions about spiritual maturity, especially since what i’ve said about age-appropriate maturity is true of spiritual maturity also.