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Posts by Phoebe Cohen

a thing that irks me about the hampshire college thing is, the people worst affected by its closure are the staff and faculty—especially the latter. yet 95% of what i see people saying about it are entirely about students, whether current or imagined future students.

6 days ago 18 1 1 1

ugg do we have to write a response now?!

6 days ago 1 0 0 0

and people DO loose sleep about the fact that construction is majority men and nursing is majority women....like, do a google

6 days ago 4 0 1 0

I will add that the fact that biology is now 60% women is A NEW THING IN THE LAST FEW DECADES and maybe because of changes that were made to pedagogy, mentoring, and an increasing # of women in senior positions in bio...

6 days ago 8 1 2 0
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Annotated Edition: "Why sex-ratios in majors might be more than just bias" Line-by-line notes on factual, logical, and rhetorical errors. Annotated by Chad M. Topaz.

Another professor wrote a campus paper piece arguing that the economics gender gap is mostly biology. This... did not survive close reading. So because I am this way, I made an interactive annotated edition cataloging the factual, logical, and rhetorical errors. Wheee... Enjoy! #EconSky #AcademicSky

6 days ago 143 51 16 6

#ArtemisII has been sustaining me in many ways, and despite nationalist tone to some of its framing, I'm grateful this journey was made in a context where openly-emotional experience is shared by crew & team, alongside science. Wouldn't have happened with Apollo, or some other space agencies today.

1 week ago 51 5 1 0

Oh no. NSF Long Term Ecological Research (LTER) program shuttered.

This one leaves me winded. A good story from 2025 by @seattletimes-rss.bsky.social offers insight into what we are losing: www.seattletimes.com/seattle-news...

2 weeks ago 445 235 6 15

I'm very excited to share that I'll be following the likes of @jamellebouie.net by speaking at Williams College on April 22 as part of their 2026 Public Affairs Forum!

In conversation with @sarahjacobson.bsky.social, we'll discuss the (not-so) hidden truth about work and #TheDoubleTax. 😭🥹

2 weeks ago 12 3 0 0
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Hah! More like why are THEY wearing suits 😉

2 weeks ago 1 0 0 0

excited for this!

2 weeks ago 6 3 1 0
Poster with information on the spring public affair forum at Williams College. TUESDAY, MARCH 16 | 7:30 PM | ’62 CENTER MAINSTAGE
A Conversation with Oren Cass ’05, WEDNESDAY, APRIL 22, 7:00 PM, GRIFFIN 3
A Conversation Anna Gifty
Opoku-Agyeman and Sarah Jacobson, THURSDAY, APRIL 30 | 4:15 PM | GRIFFIN 3
Labor Roundtable with Mijin Cha, Ryan
Hancock and Alex Jacquez, moderated
by Ben Snyder

Poster with information on the spring public affair forum at Williams College. TUESDAY, MARCH 16 | 7:30 PM | ’62 CENTER MAINSTAGE A Conversation with Oren Cass ’05, WEDNESDAY, APRIL 22, 7:00 PM, GRIFFIN 3 A Conversation Anna Gifty Opoku-Agyeman and Sarah Jacobson, THURSDAY, APRIL 30 | 4:15 PM | GRIFFIN 3 Labor Roundtable with Mijin Cha, Ryan Hancock and Alex Jacquez, moderated by Ben Snyder

Lineup for the Public Affairs Forum at Williams College! I had a hand in the remaining two events with @itsafronomics.blacksky.app on April 22nd and @jmijin.bsky.social @alexsjacquez.bsky.social and Ryan Hancock on April 30th - join us for some great conversations about work & labor

2 weeks ago 2 0 0 2

missing pages!

2 weeks ago 2 0 0 0

Definitely super cool and signficant! But doesn't re-write the origins of complex life - just fills in some gaps that we know existed in the fossil record - we know that major clades of animals diverged long before the Cambrian boundary, this fills in some of that missing fossil record.

2 weeks ago 11 1 1 1

So excited to host @itsafronomics.blacksky.app at Williams in a few weeks!

2 weeks ago 2 0 0 0

Chad is my work bestie. How lucky am I? So excited to read this book - just a little over a month till it comes out! Still time to pre-order and be first in line to read it and have your mind blown (in a wow things are @#$#ed up but also wow data is cool sort of way)!! bookshop.org/p/books/unlo...

2 weeks ago 5 1 1 0
Authors

Chad M. Topaz,
Anvi Kurongonayini,
Bennett Ptak,
Arden Fluehr,
Ariana Mendible,
Rachel Roca,
Nancy Rodríguez,
Lu Xian,
Régan Schwartz,
Jude Higdon

Abstract

Five countries account for over 80% of Nobel Prize–winning discoveries. Because high-prestige recognition redirects resources and talent, such concentration can be self-reinforcing, yet whether it originates in institutional design or individual evaluator behavior is unknown. We decomposed Nobel selection into a five-layer network spanning 8,134 individuals, 514,111 edges, and five prize categories (1901–1975). The Swedish and Norwegian bodies that oversee Nobel selection assembled a geographically diverse nominator pool, yet within it, nominators select same-country nominees 4.85 times as often as expected (p < 0.001), from 8.58 times in Literature to 3.01 times in Physics. This concentration persisted as the nominee pool diversified over seven decades. Geographic sorting enters at the discretionary nomination decision, not the institutional pipeline—a specific, targetable point in the selection process.

Authors Chad M. Topaz, Anvi Kurongonayini, Bennett Ptak, Arden Fluehr, Ariana Mendible, Rachel Roca, Nancy Rodríguez, Lu Xian, Régan Schwartz, Jude Higdon Abstract Five countries account for over 80% of Nobel Prize–winning discoveries. Because high-prestige recognition redirects resources and talent, such concentration can be self-reinforcing, yet whether it originates in institutional design or individual evaluator behavior is unknown. We decomposed Nobel selection into a five-layer network spanning 8,134 individuals, 514,111 edges, and five prize categories (1901–1975). The Swedish and Norwegian bodies that oversee Nobel selection assembled a geographically diverse nominator pool, yet within it, nominators select same-country nominees 4.85 times as often as expected (p < 0.001), from 8.58 times in Literature to 3.01 times in Physics. This concentration persisted as the nominee pool diversified over seven decades. Geographic sorting enters at the discretionary nomination decision, not the institutional pipeline—a specific, targetable point in the selection process.

🚨 80% of Nobel Prizes go to folx in 5 countries. Why?

We analyzed 75 years of prize committees, nominators, nominees, and laureates... a network of 500k edges. Turns out nominators choose compatriots at 5x the expected rate — amplifying geographic bias.

Read: osf.io/preprints/so...

#AcademicSky

3 weeks ago 75 33 4 2
A scale illustration of the Earth and the Moon, with the Earth on the far left, lots of black, and then the Moon on the far right, about 30 Earth diameters away.

A scale illustration of the Earth and the Moon, with the Earth on the far left, lots of black, and then the Moon on the far right, about 30 Earth diameters away.

In honor of (hopefully) today's launch of NASA's Artemis II mission, the first crewed mission to orbit the Moon in more than 50 years, here is a to-scale graphic of exactly how far away the Moon actually is. (Click image to expand.) You could fit about 30 Earths between the Earth and the Moon!

2 weeks ago 1213 349 40 17
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I know that there are a lot of different ways to be in the world, but I actually cannot comprehend how anyone who uses GenAI to do some of their research and/or writing thinks of themselves as a thinker and writer.

The thing that makes me a writer is that I do my writing. I also do my prep for it.

3 weeks ago 516 78 8 7
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Chile Copper Output Hits Nine-Year Low, Adding to Supply Concern Chile posted its lowest monthly copper output in almost nine years, highlighting the challenges facing the world’s top producer as ore grades decline and key mines underperform.

Maybe unpopular opinion but I think people too glibly hand-wave away physical/geological concerns about things like continuously declining ore grade, which probably isn't going to get much better given we have to mine more copper in next 30 years than previous 6,000 www.bloomberg.com/news/article...

3 weeks ago 13 2 2 0
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a tiktok video of a turquoise ocean with a blue sky in the background Alt: a tiktok video of a turquoise ocean with a blue sky in the background

Whooo out there has some undergrad accessible slides and/or activities on marine carbonate chemistry? You know Bjerrum plots, alkalinity, etc? I'm finding lots that dives right into the chemistry, but I need something for undergrads who haven't seen much chem since high school...

3 weeks ago 5 2 0 1
March 18- SXSW
March 21- Spelman's Black Beauty STEMINIST Summit
April 7- 2026 Mullin Welch Lecture with Cortney Sanders
April 18 - Women in Power conference with Dr. Iris Bohnet
April 22 - 2026 Public Affairs Forum at Williams College
April 24 - Just Book-ish with The City of Boston

March 18- SXSW March 21- Spelman's Black Beauty STEMINIST Summit April 7- 2026 Mullin Welch Lecture with Cortney Sanders April 18 - Women in Power conference with Dr. Iris Bohnet April 22 - 2026 Public Affairs Forum at Williams College April 24 - Just Book-ish with The City of Boston

It's official! This Spring, #TheDoubleTax is back on the road and may be coming to a city near you. See you soon: Austin, Atlanta, Ann Arbor, Cambridge, Williamstown, and Boston!

All tickets can be found at: annagifty.com/thedoubletax

#womenshistorymonth #blacksky #booksky

1 month ago 103 29 3 2
Another worm bites the dust: the Lilliput Effect in scolecodonts from the Late Devonian Biodiversity Crisis | Paleobiology | Cambridge Core Another worm bites the dust: the Lilliput Effect in scolecodonts from the Late Devonian Biodiversity Crisis

Congrats to @gwynchil.bsky.social on her first first-author publication in @paleosoc.bsky.social Paleobiology! www.cambridge.org/core/journal... - based on her undergrad thesis w/ me at Williams, Gwyn finds that tiny worm teeth(scolecodonts) get smaller across the Late Devonian extinction event

4 weeks ago 19 8 1 0
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This is Nathan Cavanaugh, another DOGE staffer explaining how he flagged grants at NEH for "DEI" which would be reviewed for termination. 404 Media has reviewed hours of this footage and we'll have more soon.

Part of a lawsuit by @acls1919.bsky.social, @modernlanguage.bsky.social + @historians.org

1 month ago 8659 3560 1203 1939

Let me know if you figure it out - since we don't have good consensus on what causes the banding, it's really really hard to know! Could be seasonal/annual, but then there's the usual issues w/ assuming constant sed rates, etc.

1 month ago 7 0 0 0
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A very amateur recording of a very fun and interesting night with me, @peterbrannen.bsky.social and @sidneyrothstein.bsky.social discussing carbon dioxide, capitalism, and copper mines.

1 month ago 5 1 0 0

I tell people that if the government is covering up the existence of aliens, NASA is absolutely not involved, because astrobiologists can't keep a secret to save their lives

1 month ago 985 218 12 8

Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating).

A brief 🧵 (carried over from the old place)

1 month ago 380 152 16 15

The public and commentators need to stop thinking about "wars for oil" as about securing oil for the U.S., it's been decades since that was a motivator. "Wars for oil" are instead about securing oil for oil companies, securing a fossil fueled global economy, and denying oil's wealth to "enemies."

1 month ago 241 77 11 7
Video

Jayme Lawson from Sinners hit the nail on the head and said how I felt with the whole BAFTAs situation.

1 month ago 8606 2925 117 358

My hope is to post many of these on the SERC website once the semester is over - so far I've got a STELLA model for the long term carbon-oxygen cycle, and I'll have at least two R-based @macrostrat.org labs by the end of the semester as well.

1 month ago 1 0 0 0