J. Nathan Matias
@natematias.bsky.social
I work with communities on citizen science for safer, fairer, more understanding Internet. Founder: Citizens & Technology Lab. Assistant Prof in Communication at Cornell · Guatemalan-American. @natematias@social.coop
natematias.com
citizensandtech.org
natematias.com
citizensandtech.org
In 2023, scientists estimate that 5.4k acute deaths and over 64k chronic deaths in North America were caused by wildfire smoke. Millions now face a question I ask every day: when is it safe to go outside?
AI forecasts might help, but is it safe to use them? Short answer: we need better tests first.
AI forecasts might help, but is it safe to use them? Short answer: we need better tests first.
November 25, 2025 at 1:21 AM
In 2023, scientists estimate that 5.4k acute deaths and over 64k chronic deaths in North America were caused by wildfire smoke. Millions now face a question I ask every day: when is it safe to go outside?
AI forecasts might help, but is it safe to use them? Short answer: we need better tests first.
AI forecasts might help, but is it safe to use them? Short answer: we need better tests first.
it warms my heart that this is still a conversation in 2025
November 24, 2025 at 10:22 PM
it warms my heart that this is still a conversation in 2025
"Companies that make fitness trackers aren’t required to publish their algorithms or verify... calorie counts are accurate. They can just put a device on the market, and there you are, comparing wearables on shopping sites without any information about how accurate they are."
November 22, 2025 at 5:37 PM
"Companies that make fitness trackers aren’t required to publish their algorithms or verify... calorie counts are accurate. They can just put a device on the market, and there you are, comparing wearables on shopping sites without any information about how accurate they are."
It turns out that fitness trackers and other quasi-medical devices have the same problem that Amy Orben and I wrote about in Science earlier this year:
Companies develop & deploy new products faster than science can help markets correct for bad products.
www.science.org/doi/10.1126/...
Companies develop & deploy new products faster than science can help markets correct for bad products.
www.science.org/doi/10.1126/...
Fixing the science of digital technology harms
Technology development outpaces scientific assessment of impacts
www.science.org
November 22, 2025 at 5:34 PM
It turns out that fitness trackers and other quasi-medical devices have the same problem that Amy Orben and I wrote about in Science earlier this year:
Companies develop & deploy new products faster than science can help markets correct for bad products.
www.science.org/doi/10.1126/...
Companies develop & deploy new products faster than science can help markets correct for bad products.
www.science.org/doi/10.1126/...
November 22, 2025 at 1:07 PM
@dianamonkey.bsky.social might you consider amplifying? Thanks!
November 21, 2025 at 1:59 PM
@dianamonkey.bsky.social might you consider amplifying? Thanks!
Religion News Service investigated the claim of planned raids on churches, found several factual inaccuracies, and failed to corroborate. Also, DHS Assistant Secretary would not rule out raids on churches.
The article has a balanced review of the situation.
religionnews.com/2025/11/20/v...
The article has a balanced review of the situation.
religionnews.com/2025/11/20/v...
Viral warnings of planned ICE raids on churches have pastors worried
(RNS) — Rumors and viral reports about potential ICE raids have immigrant church leaders worried about their congregations. DHS says it doesn’t have plans to raid churches — but won’t rule it out.
religionnews.com
November 21, 2025 at 1:59 PM
Religion News Service investigated the claim of planned raids on churches, found several factual inaccuracies, and failed to corroborate. Also, DHS Assistant Secretary would not rule out raids on churches.
The article has a balanced review of the situation.
religionnews.com/2025/11/20/v...
The article has a balanced review of the situation.
religionnews.com/2025/11/20/v...