Nigel Goldenfeld
@nigelgoldenfeld.bsky.social
Chancellor's Distinguished Professor of Physics, UCSD. Interested in everything.
Theoretical physicist researching condensed & living matter, fluid mechanics, statistical mechanics. Bad at staying in my lane.
https://guava.physics.ucsd.edu/~nigel/
Theoretical physicist researching condensed & living matter, fluid mechanics, statistical mechanics. Bad at staying in my lane.
https://guava.physics.ucsd.edu/~nigel/
Pinned
‘I was never an activist’: The San Diegans signing up to watch ICE
Community patrol groups that monitor neighborhoods for immigration enforcement are seeing a swell of interest from new volunteers.
www.sandiegouniontribune.com
Thx @sandiegouniontribune.com for 2 articles relevant to rumors that #ICE is ramping up activities in #SanDiego & Southern CA.
www.sandiegouniontribune.com/2026/02/15/i...
==> how you can sign up to watch ICE
www.sandiegouniontribune.com/2026/02/15/k...
==> know your risks and rights
www.sandiegouniontribune.com/2026/02/15/i...
==> how you can sign up to watch ICE
www.sandiegouniontribune.com/2026/02/15/k...
==> know your risks and rights
Reposted by Nigel Goldenfeld
@science.org Evolution of error correction through a need for speed | Science #evolution 🧬🔬 www.science.org/doi/10.1126/...
Evolution of error correction through a need for speed
Kinetic proofreading is a class of error-correcting mechanisms in biology that expend energy to avoid mistakes during replication, transcription, and translation. Proofreading is typically assumed to ...
www.science.org
February 19, 2026 at 7:07 PM
@science.org Evolution of error correction through a need for speed | Science #evolution 🧬🔬 www.science.org/doi/10.1126/...
Tagging @takumimatz.bsky.social this time!
Huge thanks to Takumi Matsuzawa and William Irvine who built and performed the experiments and @minhui-zhu.bsky.social who worked with me on theory! An amazing collaboration.
February 18, 2026 at 5:50 PM
Tagging @takumimatz.bsky.social this time!
🧪⚛️ Ever wondered what would happen if you thrashed around in a water tank, creating a blob of turbulence, and then watched it spread and gradually dissipate energy?
So did we. But we did the experiment, now out in PNAS and on the cover! It only took us 7 years ...
www.pnas.org/doi/10.1073/...
So did we. But we did the experiment, now out in PNAS and on the cover! It only took us 7 years ...
www.pnas.org/doi/10.1073/...
February 18, 2026 at 6:13 AM
🧪⚛️ Ever wondered what would happen if you thrashed around in a water tank, creating a blob of turbulence, and then watched it spread and gradually dissipate energy?
So did we. But we did the experiment, now out in PNAS and on the cover! It only took us 7 years ...
www.pnas.org/doi/10.1073/...
So did we. But we did the experiment, now out in PNAS and on the cover! It only took us 7 years ...
www.pnas.org/doi/10.1073/...
Your tax dollars at work. Over at Otay Mesa Detention Center, run by #CoreCivic for profit, massive human rights abuses, see here:
lataco.com/captive-loti...
#SanDiego County is following up:
timesofsandiego.com/politics/202...
as are some local politicians
www.kpbs.org/news/border-...
lataco.com/captive-loti...
#SanDiego County is following up:
timesofsandiego.com/politics/202...
as are some local politicians
www.kpbs.org/news/border-...
Exclusive: Detention Center Captives Are Throwing Lotion Bottles Wrapped With Notes to Organizers Outside Otay Mesa Facility ~ L.A. TACO
“For 280 days we haven’t eaten a single piece of fruit, banana, apple, orange, or anything fresh," an Otay Mesa captive communicated through handwritten note. "We are all in one big room with no doors...
lataco.com
February 18, 2026 at 5:08 AM
Your tax dollars at work. Over at Otay Mesa Detention Center, run by #CoreCivic for profit, massive human rights abuses, see here:
lataco.com/captive-loti...
#SanDiego County is following up:
timesofsandiego.com/politics/202...
as are some local politicians
www.kpbs.org/news/border-...
lataco.com/captive-loti...
#SanDiego County is following up:
timesofsandiego.com/politics/202...
as are some local politicians
www.kpbs.org/news/border-...
Thx @sandiegouniontribune.com for 2 articles relevant to rumors that #ICE is ramping up activities in #SanDiego & Southern CA.
www.sandiegouniontribune.com/2026/02/15/i...
==> how you can sign up to watch ICE
www.sandiegouniontribune.com/2026/02/15/k...
==> know your risks and rights
www.sandiegouniontribune.com/2026/02/15/i...
==> how you can sign up to watch ICE
www.sandiegouniontribune.com/2026/02/15/k...
==> know your risks and rights
‘I was never an activist’: The San Diegans signing up to watch ICE
Community patrol groups that monitor neighborhoods for immigration enforcement are seeing a swell of interest from new volunteers.
www.sandiegouniontribune.com
February 18, 2026 at 4:48 AM
Thx @sandiegouniontribune.com for 2 articles relevant to rumors that #ICE is ramping up activities in #SanDiego & Southern CA.
www.sandiegouniontribune.com/2026/02/15/i...
==> how you can sign up to watch ICE
www.sandiegouniontribune.com/2026/02/15/k...
==> know your risks and rights
www.sandiegouniontribune.com/2026/02/15/i...
==> how you can sign up to watch ICE
www.sandiegouniontribune.com/2026/02/15/k...
==> know your risks and rights
Reposted by Nigel Goldenfeld
Democracy is when voters choose their leaders. Autocracy is when leaders choose their voters.
Kristi Noem: "When it gets to Election Day, we've been proactive to make sure we have the right people voting, electing the right leaders to lead this country."
February 14, 2026 at 3:33 PM
Democracy is when voters choose their leaders. Autocracy is when leaders choose their voters.
Reposted by Nigel Goldenfeld
Not only did they murder hundreds of thousands of people. They also stole the money.
there's fierce competition, but this is one of the most stomach-turning things I've read in some time
Exclusive: White House uses USAID funds for budget director Vought's security, documents show
The White House budget office is using millions of dollars from the former U.S. foreign aid agency to pay for the security detail of Russell Vought, President Donald Trump's budget chief and an archit...
www.reuters.com
February 13, 2026 at 2:09 PM
Not only did they murder hundreds of thousands of people. They also stole the money.
Gift article from WaPo: how Earth's warming is accelerating.
Meanwhile we are repealing the EPA Endangerment Finding today ... and the editorials for WaPo applaud this move. Do they read their own paper?. (No I'm not gifting this dreck www.washingtonpost.com/opinions/202...)
wapo.st/3MqvwbC
Meanwhile we are repealing the EPA Endangerment Finding today ... and the editorials for WaPo applaud this move. Do they read their own paper?. (No I'm not gifting this dreck www.washingtonpost.com/opinions/202...)
wapo.st/3MqvwbC
Scientists thought they understood global warming. Then the past three years happened.
The fastest warming period since 1880 occurred in the past 30 years, according to a Washington Post analysis of NASA data.
wapo.st
February 12, 2026 at 5:56 PM
Gift article from WaPo: how Earth's warming is accelerating.
Meanwhile we are repealing the EPA Endangerment Finding today ... and the editorials for WaPo applaud this move. Do they read their own paper?. (No I'm not gifting this dreck www.washingtonpost.com/opinions/202...)
wapo.st/3MqvwbC
Meanwhile we are repealing the EPA Endangerment Finding today ... and the editorials for WaPo applaud this move. Do they read their own paper?. (No I'm not gifting this dreck www.washingtonpost.com/opinions/202...)
wapo.st/3MqvwbC
“What we have right now is an invading army,” he said. “What they’ve done is they’ve trampled on the Constitution and the rights of the people. Now they’ve even murdered people. So now, we just can’t say OK, everything’s fine, we’re just going to give you less money.
#ice
#ice
Rep. Vargas urges ‘dismantle ICE’ after refused entrance to Otay prison
Rep. Juan Vargas, D-San Diego, said he was denied entry to the Otay Mesa Detention Center, where immigrants are held under ICE contracts, despite prior access. He called for dismant…
Rep. Juan Vargas, D-San Diego, said he was denied entry to the Otay Mesa Detention Center, where immigrants are held under ICE contracts, despite prior access. He called for dismant…
Rep. Vargas urges 'dismantle ICE' after refused entrance to Otay prison
Rep. Juan Vargas issued a call to 'dismantle ICE' on Friday after being denied entrance to the Otay Mesa Detention Center where immigrants are held.
timesofsandiego.com
February 7, 2026 at 5:36 PM
“What we have right now is an invading army,” he said. “What they’ve done is they’ve trampled on the Constitution and the rights of the people. Now they’ve even murdered people. So now, we just can’t say OK, everything’s fine, we’re just going to give you less money.
#ice
#ice
Reposted by Nigel Goldenfeld
San Diego judge orders 3 deported families returned, finds ICE used ‘lies, deception, coercion’
www.sandiegouniontribune.com/2026/02/06/s...
www.sandiegouniontribune.com/2026/02/06/s...
San Diego judge orders 3 deported families returned, finds ICE used ‘lies, deception, coercion’
The families were legally paroled into U.S. and protected by a settlement agreement in the family separate case.
www.sandiegouniontribune.com
February 7, 2026 at 5:28 AM
San Diego judge orders 3 deported families returned, finds ICE used ‘lies, deception, coercion’
www.sandiegouniontribune.com/2026/02/06/s...
www.sandiegouniontribune.com/2026/02/06/s...
I'm speechless ...
MERE HOURS after the President of the United States posted an AI video of the Obama’s as monkeys, the Science Tech Action Committee (led by @aaas.org and @researchamerica.bsky.social) posted a THANK YOU to TRUMP for SIGNING THE BUDGET.
Shot. Chaser.
sciencetechaction.org/aboutus/
Shot. Chaser.
sciencetechaction.org/aboutus/
February 7, 2026 at 2:08 AM
I'm speechless ...
If you wish to know more about the post I'm quote-posting, and are in the #SanDiego area, here is an account by a local journalist.
I've heard that #ice activity in San Diego has increased in the last few days.
obrag.org/2026/01/week...
I've heard that #ice activity in San Diego has increased in the last few days.
obrag.org/2026/01/week...
February 6, 2026 at 6:18 PM
If you wish to know more about the post I'm quote-posting, and are in the #SanDiego area, here is an account by a local journalist.
I've heard that #ice activity in San Diego has increased in the last few days.
obrag.org/2026/01/week...
I've heard that #ice activity in San Diego has increased in the last few days.
obrag.org/2026/01/week...
Science EIC Thorp would like to have it both ways:
1) Credited for being reasonable in acknowledging the importance of (i) quiet insiders & (ii) activists in confronting cuts to science.
2) Clear on who he thinks really deserves the credit for the wins: insiders.
🧵
www.science.org/doi/10.1126/...
1) Credited for being reasonable in acknowledging the importance of (i) quiet insiders & (ii) activists in confronting cuts to science.
2) Clear on who he thinks really deserves the credit for the wins: insiders.
🧵
www.science.org/doi/10.1126/...
A tale of many twos
For the American scientific enterprise, the past year has seemed awash in contradiction. On the one hand, it has produced great upheavals and losses for US science. Many universities experienced some ...
www.science.org
February 6, 2026 at 5:47 PM
Reposted by Nigel Goldenfeld
BREAKING: Over 680 members of the National Academy of Sciences, Medicine, and Engineering have endorsed articles of impeachment against RFK Jr.
(1/2 🧵)
(1/2 🧵)
February 5, 2026 at 9:08 PM
BREAKING: Over 680 members of the National Academy of Sciences, Medicine, and Engineering have endorsed articles of impeachment against RFK Jr.
(1/2 🧵)
(1/2 🧵)
Reposted by Nigel Goldenfeld
The biweekly newsletter of the National Institutes of Health (NIH) Record that discusses recent research advances, charts NIH’s progress and highlights staff members published its last issue today after 76 years [link]
TAT: [Attacking Science | Controlling Information | Hollowing State]
TAT: [Attacking Science | Controlling Information | Hollowing State]
January 30, 2026 at 11:50 PM
There's a CR to fund ICE and DHS for 2 weeks while a budget deal is done. Democrats have an opportunity -- and a moral duty to condition their votes to pass a budget on real, ironclad restrictions on ICE and CBP.
Tell Your Members of Congress to rein in ICE NOW act.indivisible.org/sign/ice-out...
Tell Your Members of Congress to rein in ICE NOW act.indivisible.org/sign/ice-out...
Tell Your Members of Congress to rein in ICE NOW
On January 24, federal forces with the Department of Homeland Security killed Alex Pretti in Minneapolis. This was just over two weeks after the killing of Renee Nicole Good. These killings are a dire...
act.indivisible.org
February 1, 2026 at 1:23 AM
There's a CR to fund ICE and DHS for 2 weeks while a budget deal is done. Democrats have an opportunity -- and a moral duty to condition their votes to pass a budget on real, ironclad restrictions on ICE and CBP.
Tell Your Members of Congress to rein in ICE NOW act.indivisible.org/sign/ice-out...
Tell Your Members of Congress to rein in ICE NOW act.indivisible.org/sign/ice-out...
Reposted by Nigel Goldenfeld
The DHS funding bill can’t pass the Senate without Democratic votes.
Our senators can’t vote to give Trump’s secret police more money to kill innocent people, terrorize our communities, and violate our rights.
Demand that your senators vote later this week to rein in ICE and CBP death squads.
Our senators can’t vote to give Trump’s secret police more money to kill innocent people, terrorize our communities, and violate our rights.
Demand that your senators vote later this week to rein in ICE and CBP death squads.
Tell the Senate: Not a penny more for ICE brutality | Indivisible
indivisible.org
January 26, 2026 at 5:17 PM
The DHS funding bill can’t pass the Senate without Democratic votes.
Our senators can’t vote to give Trump’s secret police more money to kill innocent people, terrorize our communities, and violate our rights.
Demand that your senators vote later this week to rein in ICE and CBP death squads.
Our senators can’t vote to give Trump’s secret police more money to kill innocent people, terrorize our communities, and violate our rights.
Demand that your senators vote later this week to rein in ICE and CBP death squads.
Public service announcement for those in California, from the Governor's office.
www.gov.ca.gov/2026/01/24/k...
www.gov.ca.gov/2026/01/24/k...
Know your rights, California | Governor of California
www.gov.ca.gov
January 26, 2026 at 7:37 AM
Public service announcement for those in California, from the Governor's office.
www.gov.ca.gov/2026/01/24/k...
www.gov.ca.gov/2026/01/24/k...
Reposted by Nigel Goldenfeld
Grants are not funded unless reviewed by panels.
Federal law requires these panels to review applications before funding can be awarded. The ability of those institutes to issue new grants could be frozen if things don't change.
🧪 www.nature.com/articles/d41...
Federal law requires these panels to review applications before funding can be awarded. The ability of those institutes to issue new grants could be frozen if things don't change.
🧪 www.nature.com/articles/d41...
Exclusive: key NIH review panels due to lose all members by the end of 2026
Thirteen of the agency’s advisory councils, which must review grant applications before funding is awarded, are on track to have no voting members.
www.nature.com
January 25, 2026 at 6:39 PM
Grants are not funded unless reviewed by panels.
Federal law requires these panels to review applications before funding can be awarded. The ability of those institutes to issue new grants could be frozen if things don't change.
🧪 www.nature.com/articles/d41...
Federal law requires these panels to review applications before funding can be awarded. The ability of those institutes to issue new grants could be frozen if things don't change.
🧪 www.nature.com/articles/d41...
Reposted by Nigel Goldenfeld
If you want proof that Trump is going to try to rig the elections, here it is:
In a letter to Gov. Tim Walz Saturday, Bondi claimed that Walz could “restore the rule of law” by complying with a list of demands, including giving the Department of Justice (DOJ) the state’s voter registration records.
In a letter to Gov. Tim Walz Saturday, Bondi claimed that Walz could “restore the rule of law” by complying with a list of demands, including giving the Department of Justice (DOJ) the state’s voter registration records.
AG Bondi demands access to Minnesota voter rolls after fatal Border Patrol shooting
Her demand came as Minneapolis was reeling from a second fatal shooting by a federal agent this month.
www.democracydocket.com
January 25, 2026 at 3:09 AM
If you want proof that Trump is going to try to rig the elections, here it is:
In a letter to Gov. Tim Walz Saturday, Bondi claimed that Walz could “restore the rule of law” by complying with a list of demands, including giving the Department of Justice (DOJ) the state’s voter registration records.
In a letter to Gov. Tim Walz Saturday, Bondi claimed that Walz could “restore the rule of law” by complying with a list of demands, including giving the Department of Justice (DOJ) the state’s voter registration records.
Reposted by Nigel Goldenfeld
Masked government agents are conducting “show me your papers” stops, detaining 5-year-olds to use them as bait, and brutally murdering U.S. citizens.
Call it what it is — fascism.
History will not look fondly on politicians and so-called "leaders" of this country who stood by and enabled this.
Call it what it is — fascism.
History will not look fondly on politicians and so-called "leaders" of this country who stood by and enabled this.
January 25, 2026 at 1:24 AM
Masked government agents are conducting “show me your papers” stops, detaining 5-year-olds to use them as bait, and brutally murdering U.S. citizens.
Call it what it is — fascism.
History will not look fondly on politicians and so-called "leaders" of this country who stood by and enabled this.
Call it what it is — fascism.
History will not look fondly on politicians and so-called "leaders" of this country who stood by and enabled this.
Appropriations bill for multiple agencies came out. Unfortunately NIH is part of a "minibus" bundle that includes Homeland Security & ICE.
To be voted on soon.
If ICE funding matters to you, consider this:
👇👇👇👇👇👇
act.indivisible.org/sign/ice-out...
www.appropriations.senate.gov/news/majorit...
To be voted on soon.
If ICE funding matters to you, consider this:
👇👇👇👇👇👇
act.indivisible.org/sign/ice-out...
www.appropriations.senate.gov/news/majorit...
Committee Releases Conferenced Defense, Homeland Security, Labor, Health and Human Services, Education, and Related Agencies, and Transportation, Housing and Urban Development, and Related Agencies Bi...
United States Senate Committee on Appropriations
www.appropriations.senate.gov
January 20, 2026 at 6:23 PM
Appropriations bill for multiple agencies came out. Unfortunately NIH is part of a "minibus" bundle that includes Homeland Security & ICE.
To be voted on soon.
If ICE funding matters to you, consider this:
👇👇👇👇👇👇
act.indivisible.org/sign/ice-out...
www.appropriations.senate.gov/news/majorit...
To be voted on soon.
If ICE funding matters to you, consider this:
👇👇👇👇👇👇
act.indivisible.org/sign/ice-out...
www.appropriations.senate.gov/news/majorit...
What could possibly go wrong?
The main bank account holding revenue from the Venezuelan oil sales is located in Qatar.
“There is no basis in law for a president to set up an offshore account that he controls so that he can sell assets seized by the American military,” Sen. Elizabeth Warren.
www.semafor.com/article/01/1...
“There is no basis in law for a president to set up an offshore account that he controls so that he can sell assets seized by the American military,” Sen. Elizabeth Warren.
www.semafor.com/article/01/1...
Exclusive: US gets first $500 million Venezuelan oil deal, holding some proceeds in Qatar
The details shared with Semafor mark an initial milestone in the administration’s plan following the ouster of Nicolás Maduro.
www.semafor.com
January 15, 2026 at 9:11 AM
What could possibly go wrong?
Reposted by Nigel Goldenfeld
Walz: "What's happening in MN defies belief. News reports simply don't do justice to the level of chaos & disruption & trauma the federal govt is raining down... This long ago stopped being a matter of immigration enforcement. Instead, it's a campaign of organized brutality against the people of MN"
January 15, 2026 at 2:17 AM
Walz: "What's happening in MN defies belief. News reports simply don't do justice to the level of chaos & disruption & trauma the federal govt is raining down... This long ago stopped being a matter of immigration enforcement. Instead, it's a campaign of organized brutality against the people of MN"