Dave Feldman
@davefeldman.bsky.social
Faculty in Physics and Math at College of the Atlantic.
Direct the CSSS at @sfiscience.bsky.social
Chaos. Fractals. Complex systems. Sustainable energy.
Trance. Cooking. Gardening. Fighting entropy.
Direct the CSSS at @sfiscience.bsky.social
Chaos. Fractals. Complex systems. Sustainable energy.
Trance. Cooking. Gardening. Fighting entropy.
Safe travels. Enjoy California.
January 17, 2026 at 5:09 PM
Safe travels. Enjoy California.
Reposted by Dave Feldman
Do you want to help develop new theories for systems that adapt, evolve, and interact?
Applications are open for SFI’s 2026 UCR program, a fully funded, 10-week experience for undergraduates, offering mentorship, seminars, and project development.
Apply by Jan 14, 2026
www.santafe.edu/ucr
Applications are open for SFI’s 2026 UCR program, a fully funded, 10-week experience for undergraduates, offering mentorship, seminars, and project development.
Apply by Jan 14, 2026
www.santafe.edu/ucr
December 25, 2025 at 6:02 PM
Do you want to help develop new theories for systems that adapt, evolve, and interact?
Applications are open for SFI’s 2026 UCR program, a fully funded, 10-week experience for undergraduates, offering mentorship, seminars, and project development.
Apply by Jan 14, 2026
www.santafe.edu/ucr
Applications are open for SFI’s 2026 UCR program, a fully funded, 10-week experience for undergraduates, offering mentorship, seminars, and project development.
Apply by Jan 14, 2026
www.santafe.edu/ucr
Reposted by Dave Feldman
Applications open for SFI’s 2026 UCR program.
Are you fascinated by transdisciplinary questions that transcend or combine disciplines? UCR is a fully funded, 10-week summer research experience for undergraduates curious about complexity science.
Apply by Jan 14, 2026
santafe.edu/ucr
Are you fascinated by transdisciplinary questions that transcend or combine disciplines? UCR is a fully funded, 10-week summer research experience for undergraduates curious about complexity science.
Apply by Jan 14, 2026
santafe.edu/ucr
December 11, 2025 at 10:04 PM
Applications open for SFI’s 2026 UCR program.
Are you fascinated by transdisciplinary questions that transcend or combine disciplines? UCR is a fully funded, 10-week summer research experience for undergraduates curious about complexity science.
Apply by Jan 14, 2026
santafe.edu/ucr
Are you fascinated by transdisciplinary questions that transcend or combine disciplines? UCR is a fully funded, 10-week summer research experience for undergraduates curious about complexity science.
Apply by Jan 14, 2026
santafe.edu/ucr
Reposted by Dave Feldman
Applications are open for SFI’s 2026 summer education programs, offering research and training in complexity science in Santa Fe, NM:
– Undergraduate Complexity Research
– Complex Systems Summer School
– Graduate Workshop in Computational Social Science
Info: www.santafe.edu/engage/learn...
– Undergraduate Complexity Research
– Complex Systems Summer School
– Graduate Workshop in Computational Social Science
Info: www.santafe.edu/engage/learn...
December 5, 2025 at 6:29 PM
Applications are open for SFI’s 2026 summer education programs, offering research and training in complexity science in Santa Fe, NM:
– Undergraduate Complexity Research
– Complex Systems Summer School
– Graduate Workshop in Computational Social Science
Info: www.santafe.edu/engage/learn...
– Undergraduate Complexity Research
– Complex Systems Summer School
– Graduate Workshop in Computational Social Science
Info: www.santafe.edu/engage/learn...
Reposted by Dave Feldman
Also notable - the Maine Principals' Association has had a policy of allowing trans kids to participate in school sports since 2013, but only now Senator Collins is concerned about it? Journalists should ask her why it was fine for 12 years but is now bad.
3 weeks ago, Senator Collins wouldn't tell us where she stood on protecting Mainers from gun violence because it was a state issue that "she doesn't usually weigh in on." But she'll make an exception for excluding trans kids #mepolitics
www.bangordailynews.com/2025/11/24/p...
www.bangordailynews.com/2025/11/24/p...
Susan Collins backs referendum to overturn Maine’s protections for transgender students
Collins' office said she signed onto the petition because she agrees with President Donald Trump’s interpretation of Title IX.
www.bangordailynews.com
November 24, 2025 at 10:52 PM
Also notable - the Maine Principals' Association has had a policy of allowing trans kids to participate in school sports since 2013, but only now Senator Collins is concerned about it? Journalists should ask her why it was fine for 12 years but is now bad.
Reposted by Dave Feldman
For undergraduates curious about complex systems research, applications are now open for the 2026 Undergraduate Complexity Research (UCR) program — a fully funded, 10-week summer research experience at the Santa Fe Institute.
Apply by Jan. 14, 2026: santafe.edu/ucr
Apply by Jan. 14, 2026: santafe.edu/ucr
November 17, 2025 at 6:30 PM
For undergraduates curious about complex systems research, applications are now open for the 2026 Undergraduate Complexity Research (UCR) program — a fully funded, 10-week summer research experience at the Santa Fe Institute.
Apply by Jan. 14, 2026: santafe.edu/ucr
Apply by Jan. 14, 2026: santafe.edu/ucr
Reposted by Dave Feldman
Once more, for old times’ sake
November 5, 2025 at 2:28 AM
Once more, for old times’ sake
Reposted by Dave Feldman
If you read anything today, let it be Nikole Hannah Jones’ essay on how Charlie Kirk’s death is doubling as an invitation to transform white supremacist views into normal political discourse www.nytimes.com/2025/09/28/m...
What the Public Memory of Charlie Kirk Revealed
www.nytimes.com
September 28, 2025 at 6:40 PM
If you read anything today, let it be Nikole Hannah Jones’ essay on how Charlie Kirk’s death is doubling as an invitation to transform white supremacist views into normal political discourse www.nytimes.com/2025/09/28/m...
Reposted by Dave Feldman
Very glad to see that someone is doing the important work of aligning AI alignment. alignmentalignment.ai
Center for the Alignment of AI Alignment Centers
We align the aligners
alignmentalignment.ai
September 11, 2025 at 1:04 PM
Very glad to see that someone is doing the important work of aligning AI alignment. alignmentalignment.ai
Yes. Although I'm a physicist, so I never took analysis. Or Analysis. Power series are somehow primal. Every function (some conditions apply) is, at its heart, a power series.
August 14, 2025 at 3:03 AM
Yes. Although I'm a physicist, so I never took analysis. Or Analysis. Power series are somehow primal. Every function (some conditions apply) is, at its heart, a power series.
Power series solutions will always have a warm spot in my heart. Something so fundamental and satisfying about them.
August 14, 2025 at 2:53 AM
Power series solutions will always have a warm spot in my heart. Something so fundamental and satisfying about them.
Reposted by Dave Feldman
What to make of POTUS's attempt to fire the Commissioner of the Bureau of Labor Statistics (BLS)?
Let's run down what knowledgable people are saying...
Let's run down what knowledgable people are saying...
August 1, 2025 at 10:01 PM
What to make of POTUS's attempt to fire the Commissioner of the Bureau of Labor Statistics (BLS)?
Let's run down what knowledgable people are saying...
Let's run down what knowledgable people are saying...
Reposted by Dave Feldman
This is the same amount as the entire National Science Foundation's R&D spending for the entire field of *engineering* for the whole country. All of it.
NYT reports that a mysterious, *$984 million* transfer from a Pentagon"black box" account might be paying for the renovation of Trump's "free" Qatari jet.
www.nytimes.com/2025/07/27/u...
www.nytimes.com/2025/07/27/u...
What Will It Cost to Renovate the ‘Free’ Air Force One? Don’t Ask.
www.nytimes.com
July 27, 2025 at 2:11 PM
This is the same amount as the entire National Science Foundation's R&D spending for the entire field of *engineering* for the whole country. All of it.
Reposted by Dave Feldman
This first-person account of bring swept away by the Texas floodwaters is harrowing & an incredible piece of writing.
“The River House Broke. We Rushed in the River.”
The July 4 Texas flooding ripped our Kerr County home from its pillars, pulling us into the water and into the night. Then morning came.
www.texasmonthly.com
July 11, 2025 at 12:29 AM
This first-person account of bring swept away by the Texas floodwaters is harrowing & an incredible piece of writing.
An incredible piece of writing. A tragic story and a beautiful tribute. Thank you for sharing.
July 11, 2025 at 1:23 AM
An incredible piece of writing. A tragic story and a beautiful tribute. Thank you for sharing.
Reposted by Dave Feldman
Five things to remember about war:
June 22, 2025 at 4:28 AM
Five things to remember about war:
Well worth a few minutes to listen to. Thank you @leighfinke.bsky.social for your wisdom and clarity.
rep. @leighfinke.bsky.social posted this speech and i am glad it is the last thing i saw before going to bed tonight. to give so much this week of all weeks, it is pretty amazing.
💜 “love each other til you cannot stand it.” -from the caption
💜 “love each other til you cannot stand it.” -from the caption
June 22, 2025 at 4:20 AM
Well worth a few minutes to listen to. Thank you @leighfinke.bsky.social for your wisdom and clarity.
Good luck with your next steps. I very much appreciated your hockey writing over the last few years!
June 17, 2025 at 11:24 PM
Good luck with your next steps. I very much appreciated your hockey writing over the last few years!
Reposted by Dave Feldman
Abducting people at work sites - meaning they have jobs.
Capturing them at court dates - meaning they're following the law.
Blocking them from accessible higher education - meaning they're striving for more.
And peddling lies about jobless, lawless, driftless.
Capturing them at court dates - meaning they're following the law.
Blocking them from accessible higher education - meaning they're striving for more.
And peddling lies about jobless, lawless, driftless.
🚨Another HUGE bit of news tonight; in collaboration with the Trump admin, Texas just kicked 20,000 undocumented college students — people who grew up in Texas and graduated from high school there — out of eligibility for in-state tuition.
This may force thousands to drop out.
This may force thousands to drop out.
Texas agrees with feds to end in-state tuition for undocumented students
Almost 20,000 undocumented college students in Texas will likely lose in-state tuition after this sudden policy reversal.
www.texastribune.org
June 5, 2025 at 12:31 AM
Abducting people at work sites - meaning they have jobs.
Capturing them at court dates - meaning they're following the law.
Blocking them from accessible higher education - meaning they're striving for more.
And peddling lies about jobless, lawless, driftless.
Capturing them at court dates - meaning they're following the law.
Blocking them from accessible higher education - meaning they're striving for more.
And peddling lies about jobless, lawless, driftless.
Reposted by Dave Feldman
I’d think a lot of people would find this gross, but as a Jewish person with cancer it has, let us say, a special repulsive resonance.
In this non-apology Ernst insults constituents by comparing her comment that we’re all going to die to informing them about the tooth fairy, then says you can have eternal life if you believe in Jesus Christ.
Against all odds, Joni Ernst has made it worse
June 1, 2025 at 10:02 PM
I’d think a lot of people would find this gross, but as a Jewish person with cancer it has, let us say, a special repulsive resonance.
Reposted by Dave Feldman
🧵 1/9 It could have mattered.
Nine minutes and twenty-nine seconds deprived of oxygen should have chastened the world to become allies, and not just for a summer.
A man being murdered by those who should protect and serve should have been an indelible metaphor.
Nine minutes and twenty-nine seconds deprived of oxygen should have chastened the world to become allies, and not just for a summer.
A man being murdered by those who should protect and serve should have been an indelible metaphor.
May 25, 2025 at 7:04 AM
🧵 1/9 It could have mattered.
Nine minutes and twenty-nine seconds deprived of oxygen should have chastened the world to become allies, and not just for a summer.
A man being murdered by those who should protect and serve should have been an indelible metaphor.
Nine minutes and twenty-nine seconds deprived of oxygen should have chastened the world to become allies, and not just for a summer.
A man being murdered by those who should protect and serve should have been an indelible metaphor.
Reposted by Dave Feldman
Bravo, to Stanford faculty, led by physics, to ask their administrators to stand up and fight Trump.
stanforddaily.com/2025/05/22/f...
stanforddaily.com/2025/05/22/f...
From the Community | Stanford professors respond to political interference in the governance of U.S. universities
Over 300 Stanford professors respond to Trump administration's interference in U.S. universities.
stanforddaily.com
May 25, 2025 at 2:31 PM
Bravo, to Stanford faculty, led by physics, to ask their administrators to stand up and fight Trump.
stanforddaily.com/2025/05/22/f...
stanforddaily.com/2025/05/22/f...
Reposted by Dave Feldman
Please read and share the League of Women Voters of Maine's fact check of Jared Golden on the SAVE Act. #mepolitics
www.lwvme.org/node/3443
www.lwvme.org/node/3443
Fact Check on the SAVE Act | League of Women Voters
www.lwvme.org
May 23, 2025 at 1:07 PM
Please read and share the League of Women Voters of Maine's fact check of Jared Golden on the SAVE Act. #mepolitics
www.lwvme.org/node/3443
www.lwvme.org/node/3443