AlphaEvolve: A Gemini-powered coding agent for designing advanced algorithms (deepmind.google)

> We believe that higher levels of greenness can reduce violence through four major mechanisms: reduced crime, improved short-term and long-term mental health, sending a signal that a place is well-cared for and increasing the use of outdoor spaces by nearby neighbors.

While I did not read the paywalled paper, it seems like a latent variable might also explain it: affluence and greenery might be positively correlated and police are less trigger-happy in rich neighbourhoods.

ne0flex · 2h ago

There are studies in Japan that showed train stations with blue lights installed have lower instances of attempted suicides than stations without blue lights [1]. There are also studies that indicate time in nature is associated with lower stress levels and blood pressure, regardless of income [2].

[1] https://www.bbc.com/future/article/20190122-can-blue-lights-... [2] https://www.sciencedaily.com/releases/2024/02/240207120426.h...

rrobukef · 2h ago

Per abstract, the effect is stronger in poor regions (precisely "across five levels of social deprivation"). They did control for affluence.

No comments yet

noqc · 2h ago

I'm not sure that I believe this study.

riedel · 2h ago

I guess there are tons of other confounders possible and quite difficult to control for (admittedly did not read the original study). I guess if you would take a green space and pour concrete on it just for a study to measure it against a controll, it would for sure also trigger police violence as the protesters will most likely also be quite unhappy.

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New study finds link between green spaces and police violence

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