Reposted by Bitsy PerlmanKatie Mack @astrokatie.com · 22hA fun fact about neutrinos is that they come in three “flavors” (types) and also in three masses and you would think that this means each flavor has its own mass and you would be absolutely wrong about that. 1862568
Reposted by Bitsy PerlmanKatie Mack @astrokatie.com · 22hSo when a neutrino is just flying through space unimpeded it has a mass but it is “oscillating” among the different flavors and it doesn’t have a defined flavor until it interacts with something in a way that gives the flavor away. Neutrinos are slippery little things! 2342114
Reposted by Bitsy PerlmanElizabeth Gibney @lizziegibney.bsky.social · 22hFrancis Halzen & cosmic neutrinos won the Nobel! That we can learn about the most extreme environments in space by watching tiny streaks of light in Antarctic ice is incredible. Wish Halzen had thanked Bert & Ernie tho😜 Read all here: www.nature.com/articles/d41... 🧪 with @castelvecchi.bsky.socialnature.comNobel physics prize awarded for detection of cosmic neutrinosFrancis Halzen wins the 2026 award for his work on a neutrino observatory at the South Pole that has helped to unlock mysteries of the Universe. 092
Reposted by Bitsy PerlmanChris Ingraham @cingraham.bsky.social · 18hSome bizarre shit happening in Econ circles right now where the U Chicago economist who was caught uploading 250+ AI-written papers to SSRN sent an AI-written nastygram to the dean of the guy who caught him, and followed up by posting a Quran verse at him 3306
Reposted by Bitsy PerlmanStephen Bush @stephenkb.bsky.social · 15hOne thing I find endlessly funny about the rise of AI is that it has revealed that there is a large number of people who believe that the reason they wrote essays at school or university is their teachers were desperately waiting for them to provide a definite answer to “Lear: what’s up with him?” 6250341084
Reposted by Bitsy PerlmanDan Garisto @dangaristo.bsky.social · 15hNEW: In March the White House released an FY27 budget request that zeroed out the National Science Foundation's directorate of Social, Behavioral and Economic Sciences (SBE). For months it was unclear what would happen. Now, with FY26 over, the damage to SBE is coming to light. My reporting:science.org‘Complete devastation’: How NSF gutted its social sciences researchAgency body that funds sociology, linguistics, and archaeology studies in U.S. gave 90% fewer new grants this year 5500398
Reposted by Bitsy PerlmanNick Carnes @carnes.bsky.social · 19hThe real reason working-class people almost never become politicians anywhere is that running for office is extremely personally burdensome, and that screens out the people who live the most precarious lives, including working-class people. 1288
Reposted by Bitsy PerlmanGeoff Brumfiel @gbrumfiel.bsky.social · 06/10/2026The IceCube neutrino detector has won the 2026 Nobel Prize in physics. The Trump administration has proposed slashing its budget in half in 2027. 381966690
Reposted by Bitsy PerlmanDon Moynihan @donmoyn.bsky.social · 06/10/2026Thanks to Russ Vought for exposing this woke research 161013200
Reposted by Bitsy PerlmanDan Garisto @dangaristo.bsky.social · 06/10/2026Nobel committee members really emphasizing the collaborative aspect of IceCube, with an arrow pointing to Halzen in a big collab picture. 141
Reposted by Bitsy PerlmanMarissa Vogt @vogt4brookline.bsky.social · 05/10/2026Happy #BannedBooksWeek! Celebrate by checking out a banned book from the library or watching @thelibrariansfilm.bsky.social on streaming or at a local screening. 083
Reposted by Bitsy PerlmanJay D. Aronson @jaydaronson.bsky.social · 04/10/2026Check out this article by my amazing graduate student Abby Cramer! She identifies the links between today’s techbro eugenics and that of 20th c. eugenist Paul Popenoe, an early supporter of eugenic sterilization who became a marriage counselor to ensure “high quality” produced lots of offspring. 13517
Reposted by Bitsy PerlmanCole Donovan @colesci.bsky.social · 04/10/2026EXTREMELY IMPORTANT DATA CALL ALERT: The OECD is running a survey on researcher career intentions among the member economies. Right now, I'm told that the response rate on the US side is low (to the point that US data may not get published). We need inputs from reliable sources at this moment.survey.oecd.orgOECD-EU Research and Development Careers Survey 2026 1818
Reposted by Bitsy PerlmanMark Histed @markhisted.org · 03/10/2026Killed. NSF’s SBE was killed, in violation of law. The President does not have the power to choose to kill programs at a whim by defunding them. The imperial presidency was a mistake and we are in a separation of powers constitutional crisis. 151448529
Reposted by Bitsy Perlmansamuel mehr @mehr.nz · 02/10/2026early-career academics, if you don't have a website, make yourself one. yes it's annoying but just do it it can be plain text on a white background, or google sites, or even a free Wix one with ads. nobody cares we just need to be able to look you up, quickly, bc there's like 100 other apps here 1119059
Reposted by Bitsy PerlmanDan Garisto @dangaristo.bsky.social · 01/10/2026OMB's focus on NIH and NSF, which has confused a lot of folks, pretty much boils down to stopping money going to universities. 1227141
Reposted by Bitsy PerlmanBitsy Perlman @bitsyperlman.bsky.social · 24/09/2026Public and private funding also do different things: private funders want to appropriate the created intellectual property, whereas public funders want to create public IP alexxihe.github.io/qje.pdf (Also it is very clear that researchers can't replace the funds when they lose public funding)alexxihe.github.io 021
Reposted by Bitsy PerlmanRachel Leah Childers @donskerclass.bsky.social · 30/09/2026Derenoncourt has done pioneering work on the distributional effects of policies on wealth doi.org/10.1093/qje/... and wages doi.org/10.1093/qje/... combining detailed micro data, historical context, and effective application of theory, inspiring all of us who work on economic heterogeneity. Brava! 052
Reposted by Bitsy PerlmanJohn Cawley @johncawley.bsky.social · 30/09/2026As of 2026-09-27, the # of total jobs listed on JOE is up 5.5% from this point last year. However, last year was a tough one, so for other comparisons this year's job listings are down 27.4% from 2024, and down 32.9% from 2023. 2/9 135
Reposted by Bitsy PerlmanAnna Gifty @itsafronomics.blacksky.app · 29/09/2026I believe that Dr. Ellora Derenoncourt is the first Black woman economist EVER to be named a MacArthur Genius. My heart is bursting. I am OVERJOYED. 31357238
Reposted by Bitsy PerlmanMike Schneider @mikeysid.bsky.social · 29/09/2026Missouri drops lawsuit after Trump administration proposes cutting unauthorized immigrants from 2030 census figures: countofcounting.substack.com/p/missouri-d...countofcounting.substack.comMissouri drops lawsuit after Trump administration unveils proposal to cut unauthorized immigrants from the 2030 census numbersTo no one’s surprise, Missouri has dropped its lawsuit against the U.S. 002
Reposted by Bitsy PerlmanErika McEntarfer @erikamcentarfer.bsky.social · 29/09/2026“AI is identifying more billable conditions, not sicker patients“ interesting article on AI cost pressure in health care 13613
Reposted by Bitsy PerlmanBen Zipperer @benzipperer.org · 29/09/2026Huge congrats to the brilliant economist and historian Ellora Derenoncourt, one of this year's MacArthur Fellows! 1359
Reposted by Bitsy PerlmanSam @samd.bsky.social · 29/09/2026it is quite confusing that “inclusionary zoning” is not the opposite of “exclusionary zoning”, but actually functions as a tool of exclusionary zoning 942544
Reposted by Bitsy PerlmanJake Grumbach @jakemgrumbach.bsky.social · 29/09/2026Shoutout to the 🐐GOAT🐐, respect greatness www.macfound.org/videos/2026-...macfound.orgEllora Derenoncourt - 2026 MacArthur Fellow 437878
Reposted by Bitsy PerlmanCNBC @cnbc.com · 30/09/2026Inside Man: How Chinese spies used lies, love and betrayal to target the Federal Reservecnb.cxInside Man: How Chinese spies used lies, love and betrayal to target the Federal ReserveA CNBC investigation shows how former Fed advisor John Rogers became entangled with a man U.S. officials identify as a Chinese intelligence operative. 2179
Reposted by Bitsy PerlmanJeremy Berg @jeremymberg.bsky.social · 30/09/2026It's World Dense Breast Day densebreast-info.org/join-us-for-... If you are interested in this important topic for yourself or your loved ones, follow @drwendieberg.bsky.social and @densebreastinfo.bsky.social for the best vetted information.densebreast-info.orgJoin Us for the 5th Anniversary of World Dense Breast Day, Sept 30, 2026 | DenseBreast-info, Inc.World Dense Breast Day is just around the corner! On September 30, we will proudly celebrate the 5th anniversary of this remarkable global educational event. As the Official Sponsor of World Dense Bre... 072
Reposted by Bitsy PerlmanEvan Roberts @evanrobertsnz.bsky.social · 28/09/2026Just to put things in perspective, the US has a significantly higher pedestrian death rate from traffic accidents than most OECD countries have from homicides (most OECD countries are around 1/100,000 for homicide) www.cdc.gov/mmwr/volumes... 21910
Reposted by Bitsy PerlmanDon Moynihan @donmoyn.bsky.social · 28/09/2026New, from me: Once memory-holed, DOGE is now the subject of revisionism. To better understand why DOGE failed, I talked to people in the civic tech movement that DOGE displaced, who continue to offer the alternative model for how to modernize govt. 🧵 donmoynihan.substack.com/p/doge-vs-ci...donmoynihan.substack.comDOGE vs. Civic TechAs DOGE revisionism picks up, a contrast with the civic tech movement it displaced illuminates its failure 18800259
Bitsy Perlman @bitsyperlman.bsky.social · 27/09/2026A thought: what if we just had fewer positions that were filled by the president's administration? There is no reason that most of these things couldn't be done by career civil servants (e.g., head of the Census, BLS, BEA have all been, in my experience, better when done by a career civil servant) 010
Reposted by Bitsy PerlmanDani Sandler @dismalscientist86.bsky.social · 26/09/2026AI doing things the humans didn't mean for them to do is not good in general, but the Census part (at least based on the text of the article) sounds like it used an API key to fetch public use data. Which seems ... fine. Maybe even exactly why the data exists in that format. 082
Bitsy Perlman @bitsyperlman.bsky.social · 24/09/2026Public and private funding also do different things: private funders want to appropriate the created intellectual property, whereas public funders want to create public IP alexxihe.github.io/qje.pdf (Also it is very clear that researchers can't replace the funds when they lose public funding)alexxihe.github.io 021
Reposted by Bitsy Perlmananil oza @aniloza.bsky.social · 24/09/2026Confirming the White House’s planned EO to exert more political control on NIH seems to be “dead” www.statnews.com/2026/09/23/n...statnews.comWhite House plan to increase control of NIH grants appears 'dead'A planned EO that would have greatly enhanced White House influence over grants at the NIH is “looking dead,” a source said. 713360
Reposted by Bitsy PerlmanHansi Lo Wang (he/him) @hansilowang.bsky.social · 24/09/2026My latest @npr.org story: Democratic Sen. @warren.senate.gov is demanding that Trump officials explain why the Census Bureau’s parent agency removed a ban on political interference from its scientific integrity policy, as NPR first reported last month www.npr.org/2026/09/24/n...npr.orgWarren demands Trump officials explain removing a ban on interference in census dataDemocratic Sen. Elizabeth Warren asked Trump officials to explain why the Census Bureau's parent agency cut a ban on political interference from its scientific integrity policy, as NPR first reported. 27923
Reposted by Bitsy PerlmanCarl Quintanilla @carlquintanilla.bsky.social · 22/09/2026“.. The greatest danger facing society isn’t that software will awaken and overthrow its human masters. It is that we will allow the creators of the software to abdicate human responsibility for the systems they choose to build ..” @wsj.com www.wsj.com/opinion/the-... 33924277
Reposted by Bitsy PerlmanSarah Jacobson @sarahjacobson.bsky.social · 22/09/2026Jr economists attending ASSA 2027! Are you interested in a mentoring opportunity w/ leaders in the field? Are you from a group historically underrepresented in econ? Apply for @aeacsmgep.bsky.social small-group breakfast featuring AEA Pres Katherine Abraham Jan 5 8am! www.aeaweb.org/about-aea/co...aeaweb.orgSmall Group Breakfast Meeting for Underrepresented Scholars 033
Reposted by Bitsy Perlmanjon ben-menachem @jbenmenachem.com · 22/09/2026Surprised to see the actual word slop used 2423
Reposted by Bitsy PerlmanKristian G. Andersen @kgandersen.bsky.social · 20/09/2026"White House Moves to Take Control of N.I.H. Grants" [everybody up in arms, as they should be, but for those who have been paying close attention, this has pretty much already happened - the realization just hasn't sunk in yet] www.nytimes.com/2026/09/20/s...nytimes.comWhite House Moves to Take Control of N.I.H. Grants (Gift Article)Federal officials are drafting an executive order that would place grants under review by an outside panel, the latest effort to redirect billions of dollars in research spending. 1015271
Reposted by Bitsy PerlmanDon Moynihan @donmoyn.bsky.social · 21/09/2026New from Lauren Supplee at Can We Still Govern? The US government had gradually become better at producing and using evidence. This evidence-based infrastructure is largely invisible, important, and one more thing gutted by Trump. donmoynihan.substack.com/p/the-system...donmoynihan.substack.comThe System for Using Evidence to Improve Federal Programs Has Been GuttedHere’s How We Fix It 3468181
Bitsy Perlman @bitsyperlman.bsky.social · 18/09/2026FWIW, I also have the same problem with fields that seem captured by only seeing things through one dichotomy the world is more complicated than that 000
Bitsy Perlman @bitsyperlman.bsky.social · 18/09/2026vs to look at the point of teaching to help people explore the world in search of understanding, which requires many perspectives perspectives that can't be cleanly categorized as thing 1 vs. thing 2 (though of course we can use that lens) 100
Bitsy Perlman @bitsyperlman.bsky.social · 18/09/2026The quote at the end really clinches this not being an intellectual project. The world is vast and multi-faceted, and so is intellectual rigorous exploration of it. To look at it as “You have two perspectives... exposed to both sides of the argument" is to boil things down to team 1 and team 2 100
Reposted by Bitsy PerlmanCarl T. Bergstrom @carlbergstrom.com · 16/09/2026Short thread: 18 months ago, as part of their assault on higher ed, Trump/DOGE/Vought terminated my friend Kelton Minor's NIH Director's award that would have allowed him to take a faculty position there. Without the funds, Columbia ultimately rescinded the position. Kelton moved to Denmark. 5614241
Reposted by Bitsy PerlmanMichael D. Green, PhD @michaeldgreen.phd · 17/09/2026Honestly, it was scary to think about being named. As I sat with the opportunity more, I thought that there aren’t a ton of moments to act and set up a better future for science. We’ve all been through a lot. Even though I’m at a vulnerable stage of my career, I also have relative privilege… 11476115
Reposted by Bitsy PerlmanMelissa Gentry @melissadgentry.bsky.social · 16/09/2026Are you a disability researcher working in the FSRDC wondering where the 1980s disability variable in the CPS went? I've written a CES Technical Note describing my process of bringing in those missing data! ideas.repec.org/p/cen/tnotes...ideas.repec.orgRecovering Work-Limiting Disability Variables in the 1980s CDisability status has been elicited systematically in United States surveys as far back as the 1970s and was included in the March Supplement of the Current Population Survey starting in 1981. Unfortu 2137
Reposted by Bitsy PerlmanMichael Wiebe @michaelwiebe.bsky.social · 17/09/2026New literature review on housing ladder spillovers: When rich tech workers move in, low-end rents go up. So does it follow that adding high-end homes would reduce them? Yes. Changes at the top of the ladder can propagate down and affect prices at the bottom. 1/ 718750
Reposted by Bitsy PerlmanPeter Nencka 📊 @peternka.bsky.social · 17/09/2026🚨 Announcing OpenCensus, a new project with @ezrakarger.bsky.social : We are transcribing the historical US censuses and releasing them as open data 2.6 million people so far in 1940, browse here: opencensus.us 25926
Reposted by Bitsy PerlmanKathryn Tewson @kathryntewson.bsky.social · 17/09/2026these quotes are the DEFENDANTS, describing THEIR OWN CONDUCT as “an astonishing theft of unprecedented proportions” and the “largest theft of labor in human history” as well as describing their products as “largely substitutive, period” and “will get more and more substitutive as they get better.” 4421106