The above charts — taken from a recent Financial Times article by John Burn-Murdoch called "The troubling decline in conscientiousness" — should be viewed as alarming. For some of our key personality traits, it is showing a decline in extroversion for all age groups, a decline in agreeableness (except for the 60+ crowd), a spike in neuroticism (again, except for the 60+ crowd), and a massive decline in conscientiousness, particularly for young people aged 16-39.

Why does this matter?

Well, according to Burn-Murdoch's article (tweet summary here), the two strongest predictors for overall life success are conscientiousness and neuroticism. These traits are more important than a person's socio-economic background and raw cognitive abilities. They predict career success, the likelihood of getting a divorce, health and life expectancy, financial stability, and more.

Conscientiousness is defined as "the quality of wishing to do one's work or duty well and thoroughly." But simply speaking, conscientious people tend to dependable, disciplined, and committed. They are careful and deliberate, rather than careless and impulsive.

Neuroticism, on the other hand, is generally defined around emotional reactivity. Psychologists define it in terms of the degree that someone is prone to things like anxiety, self-doubt, and sadness. Someone with high neuroticism might, for example, feel easily stressed, worry excessively, and/or dwell on past mistakes. This trait predicts outcomes that run in the opposite direction of conscientiousness: lower career satisfaction, higher divorce rates, reduced life expectancy, and so on. It can also heighten risk perception, which makes neurotic people more likely to overlook potential opportunities.

So once again, it is alarming that these two traits are shifting meaningfully in the wrong directions for young people. Burn-Murdoch puts at least part of the blame on our hyper-connected and high-distraction digital lives. He also hypothesizes that AI could exacerbate this problem. If you're a high conscientious person you might use LLMs to supercharge your abilities; whereas if you're a low conscientious person you might use them to further check out.

The good news is that these traits can be trained. We are all products of our habits and environments. And I'm finding it personally helpful to even just write about these findings. It is also reminding me of a good friend of mine from grad school who used to always espouse something that he liked to call "casual intensity." His thinking was that you need to be on top of things and get shit done. But don't stress about it. Be confident in your abilities.

I think that's a good way to try and approach things.

This morning Richard Florida published an interesting CityLab article that talks about how different personality types cluster within cities. The study he references was done by a team of psychologists that surveyed 56,000 people in the London metro area.

Here is a summary of what they found (darker red indicates higher concentration of each personality trait):

Probably the most interesting personality trait is the “openness to experience” one, as there appears to be a clear divide between people who live in the center of London and people who live in the suburbs.

Here’s how Florida describes it:

The most clustered personality trait the researchers found was “openness to experience” (bottom left map), which is concentrated in the center of London. Openness to experience, according to a wide body of psychological studies, is associated with creativity, innovation and entrepreneurship. This type is concentrated in higher density neighborhoods, with higher housing prices, more ethnic and religious diversity and higher crime rates. Meanwhile, the blue concentrations at the periphery indicate that there are fewer people open to experience in metro London’s suburbs.