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Posts by Sam Holtzen, PhD

that's genocide

2 weeks ago 1 0 0 0
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The Horrors That Could Lie Ahead if Vaccines Vanish Researchers at Stanford University modeled how many people could die or be disabled in 25 years if vaccines for polio, measles, rubella or diphtheria were no longer available.

Researchers at Stanford University modeled how many people could die or be disabled in 25 years if vaccines for polio, measles, rubella or diphtheria were no longer available.

We decided to illustrate it.

2 weeks ago 3376 1981 111 145

Excited to share a new preprint: "SIP-enabled multiomics reveals microbial growth responses to drought and rehydration"

1. We use three forms of stable isotope probing to measure in situ microbial growth under both dry and wet conditions

(1/3) www.biorxiv.org/content/10.6...

3 weeks ago 5 3 1 0

this may be oversharing, but as someone who has been through "conversion therapy" the supreme court decision throws me back to 7th grade. people in charge of my well being allowed their child to be subjected to systematic trauma. guess what! it didn't work! it never works!

3 weeks ago 1 1 0 0

what's that thing called where you profit on war? some sort of war profiteer?

1 month ago 1 0 0 0

NIH is not issuing awards. You may think that it's because they it is coming up with new directions of research...The apposite is true.

Here is a graph showing how many fewer new funding opportunities that NIH has posted over time.

-91%, a trend that started on Jan 2025.

1 month ago 26 22 5 0
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COVID’s origins: what we do and don’t know Researchers summarize key insights from the world’s first comprehensive investigation into how a pandemic started.

After nearly 3.5 years of deliberations, researchers concluded their independent assessment of the origin of the coronavirus SARS-CoV-2

go.nature.com/4qUxijx

1 month ago 48 25 0 9

"These tariffs have been in effect for almost a year. They have upended whole sectors of the U.S. & global economies. The fact that a president can illegally exercise such powers for so long & w/ such great consequences for almost a year means we’re not living in a functional constitutional system."

2 months ago 622 176 12 3

What GLP1s should teach people is that it was never about willpower and it isn't a moral issue. But people don't want to have that conversation.

2 months ago 648 81 9 1
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All about "reactionary centrism" Michael Hobbes joins me to diagnose the pundit class's obsession with scolding the left while the right burns down the house.

Today on Volts: I'm joined by the great @michaelhobbes.bsky.social to discuss "reactionary centrism," an intellectual tendency that's come to dominate US public life. You know the type: would never view themselves as conservative, yet finds voluntary pronoun use vastly more aggravating than fascism.

2 months ago 1230 301 66 103
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i've been saying this for years. not enough clump

2 months ago 2 0 0 0

Kudos to the NYT editor who took “Appears to” out of the lead headline (finally)

2 months ago 9797 1951 187 103
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AfD-Fraktion will Abschiebe-Polizei nach Trumps Vorbild ICE Die AfD-Fraktion im Bayerischen Landtag verschärft ihren Kurs: Zum Abschluss ihrer Klausurtagung in Oberbayern forderte sie eine Sonderpolizei zur schnelleren Aufgreifung und Abschiebung von ausreisep...

Für die deutsche Perspektive relevant: Es gibt in der AfD mehrere Stimmen, die sich eine ICE-verwandte Truppe in Deutschland wünschen. Also die ICE, die Menschen auf der Straße erschießt, Kinder wegnimmt & Wohnungen ohne Beschluss stürmt. Ein aktuelles Beispiel aus Bayern. www.br.de/nachrichten/...

2 months ago 104 51 7 5
Spotlight graph of X discourse about the shooting/killing of a man by ICE agents on January 24 in Minneapolis. Graph showing X posts along time (X axis) and cumulative number of X posts shared by that time (Y axis). Post counts are estimated (by Brandwatch) and include both X posts and reposts where the text contained terms indicating the post was about the *shooting AND the video* during the time period. Individual posts are plotted on the graph, sized by the number of reposts that post received (during the time period). Plotted posts are limited to posts that received >1 reposts.

Two posts are highlighted.

One by @gremloe (1/24/2026, 12:31:31 PM EDT): “It appears from zooming in just moments before ICE/CBP shoot yet another US citizen, one agent removes the victims firearm from his waste holster. The victim was UNARMED when he was shot multiple times. This is a state execution. Again.”

A second by @bennyjohnson (1/24/2026, 1:21:28 PM EDT): “Tim Walz just a few days ago was climbing on the gate of his mansion urging protesters to keep causing “trouble” and fighting ICE. An armed man just attacked agents and got killed. See how that works? Minnesota officials are fueling this.”

Spotlight graph of X discourse about the shooting/killing of a man by ICE agents on January 24 in Minneapolis. Graph showing X posts along time (X axis) and cumulative number of X posts shared by that time (Y axis). Post counts are estimated (by Brandwatch) and include both X posts and reposts where the text contained terms indicating the post was about the *shooting AND the video* during the time period. Individual posts are plotted on the graph, sized by the number of reposts that post received (during the time period). Plotted posts are limited to posts that received >1 reposts. Two posts are highlighted. One by @gremloe (1/24/2026, 12:31:31 PM EDT): “It appears from zooming in just moments before ICE/CBP shoot yet another US citizen, one agent removes the victims firearm from his waste holster. The victim was UNARMED when he was shot multiple times. This is a state execution. Again.” A second by @bennyjohnson (1/24/2026, 1:21:28 PM EDT): “Tim Walz just a few days ago was climbing on the gate of his mansion urging protesters to keep causing “trouble” and fighting ICE. An armed man just attacked agents and got killed. See how that works? Minnesota officials are fueling this.”

If you're interested in seeing how framing contests are taking shape after the ICE killing of another person in Minneapolis, here's a window into the conversation on X this morning.
Link to interactive graph: faculty.washington.edu/kstarbi/Spot...
* I put this together quickly. Sorry for any errors

2 months ago 446 165 11 11

the titanic, a ship that famously returned to port

2 months ago 1 0 0 0
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Opinion | I’ve Covered Police Abuse for 20 Years. What ICE Is Doing Is Different.

"This is no longer a conversation about law enforcement or immigration policy. This is about authoritarianism."

3 months ago 852 188 16 11

The President telling a prime time network news host effectively "I got you this job" is not something you see every day.

3 months ago 1622 338 25 14
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High-voltage anode-free sodium–sulfur batteries - Nature A new architecture based on high-valence sulfur/sulfur tetrachloride cathode chemistry is described for manufacturing high-voltage anode-free sodium–sulfur batteries, demonstrating promise for applications in grid energy storage and wearable electronics.

Nature research paper: High-voltage anode-free sodium–sulfur batteries

go.nature.com/4qEcxsz

3 months ago 13 2 0 0
A python import line reading "import napari as np"

A python import line reading "import napari as np"

Wake up babe new deranged import just dropped

3 months ago 8 2 2 0
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We Are the Bad Guys The swaggering threat to global stability is us.

“What do we call it when a stronger person decides to rob a weaker person because he can? It is just gangsterism. We are the most dangerous gangsters in the world today. Not in the sense of being charming rogues or alluring antiheroes. We are the bad guys.”

3 months ago 9358 2440 300 116

When the LAPD arrests a dude at a gas station they don’t take over the gas station and use it to gas up all the cop cars tho

3 months ago 6483 1294 344 49

i find this so fascinating because, for the most part, we don't discuss Trump! we discuss how and why his policies and decisions are bad in the hopes of combating them. they think people documenting the flatly illegal activities of trump are running some sort of gossip column!!! unserious

3 months ago 1 0 0 0
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im deutschland frohe weihnachten

3 months ago 1 0 0 0
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3 months ago 5495 940 15 13
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Extremely funny to call the pope “holier-than-thou”

3 months ago 29319 4792 964 378

This is genuinely horrifying. Fact-free far-right agitprop given accolades by credible media across the political spectrum.

3 months ago 7419 1838 115 94
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husband had a piano recital today :)

4 months ago 6 1 0 0

"you're a bioengineer? are you working on Covid-20?" 😒

4 months ago 2 0 0 0
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Rare SCOTUS W

5 months ago 197 23 16 8