David Van Horn
@lambda-calcul.us
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Prof at UMD CS.
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David Van Horn
tim_in_dc
about 17 hours ago
why do we have to navigate this, EVER. no justification for this casually militaristic police state. i will not ever consider this normal.
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Suresh Venkatasubramanian
2 days ago
This is very concerning
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dog riding turtle
6 days ago
bike lanes fucked back
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David Van Horn
Lex McMenamin (they/them)
7 days ago
for what itâs worth, trans women in a federal case Iâm covering have been denied their hormones while being held in menâs facilities under federal charges. I feel like cis people donât realize that this is happening at all
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Price of coleslaw is going up!
7 days ago
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David Van Horn
derek guy
8 days ago
RIP Mark Rothko. You would have loved how the hydrogen peroxide bleach is only turning the Reflecting Pool blue around the perimeter
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If you're voting for the candidate who is most agreeable to the president in order to avoid him taking away home rule, you've already lost home rule.
8 days ago
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David Van Horn
Neil Flanagan đ§±đïž
8 days ago
What a great day to rank JANEESE LEWIS GEORGE #1.
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David Van Horn
Neil Flanagan đ§±đïž
9 days ago
what an odd coincidence
www.thebirthofacapital.info/trumps-bunker/
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Slow Roads Save Lives
9 days ago
That the bad faith charges by McDuffie's campaign were thrown out two years ago should be the front sentance of every article on this farce.
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Free DC
15 days ago
Members of the Arkansas National Guard deployed to DC took a Free DC flag like a war trophy. This image was taken from a video released by the Arkansas National Guard. We do not know where they got the flag pictured here but it is a symbol of opposition to everything this deployment is about đ§”
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K.H.I.
15 days ago
Deleted my previous QT about this not counting as a traffic death b/c it's in a parking lot. Turns out that it MIGHT NOT count (depending on a bunch of nonsense - death by car is death by car, no?). Thanks
@actfortransit.bsky.social
for the correction!
bsky.app/profile/actf...
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ICFP Conference
19 days ago
Looking to demo your work? Teach people how to use a cool new language you've built? Give an introduction to all the beautiful nitty gritty details of your research? Submit a tutorial proposal! Deadline is ** June 21, 2026 ** More info here
icfp26.sigplan.org/track/icfp-2...
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ICFP 2026 - ICFP Tutorials - ICFP 2026
Welcome to the website of the ICFP 2026 conference. We are working hard to fill the website with all related information. Please check back soon! The ACM SIGPLAN International Conference on Functional...
https://icfp26.sigplan.org/track/icfp-2026-icfp-tutorials
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Peter Brannen
22 days ago
The NSF just eliminated geoscience postdocs, is trying to destroy NCAR, and is now dismantling the world's best array of ocean observatories for no reason, just uncomprehending childlike spite towards anyone who wants to learn anything about this planet
www.nytimes.com/2026/06/01/c...
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Trump Administration to Dismantle Ocean Monitoring System
https://www.nytimes.com/2026/06/01/climate/ocean-observatories-initiative.html?smid=nytcore-ios-share
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Carl T. Bergstrom
26 days ago
Of all the harm this administration has done to US science, today's proposed changes to the way federal grants are awarded and administered is the most damaging yet. The text of the federal register document is impenetrably tedious by design, so here's an excellent summary of what it says.
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David Van Horn
Dan Garisto
28 days ago
Scoop: NSF has been quietly blocking new funds and grants to four top universities: Duke, Harvard, Princeton, and Yale. Dozens of proposals from PIs at these universitiesâand their collaboratorsâhave been stuck at the Office of Award Management awaiting finalization for months.
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Exclusive: NSF puts new research grants to top universities on hold
US science funder once again restricts awards to Harvard University and other research institutions.
https://www.nature.com/articles/d41586-026-01667-6
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Aru
28 days ago
Hey
#bikedc
! Tomorrow's the last day to provide feedback on DDOT's plan to improve safety on a crash-prone road segment. The proposed design includes upgrading painted bike lanes to protected bike lanes. Plans here:
tinyurl.com/NOI-26-68-MS...
Submit feedback here:
tinyurl.com/NOI-26-68-MSED
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David Van Horn
UAM-UMD
28 days ago
We are in Annapolis today for the historic signing of our collective bargaining bill by
@govwesmoore.bsky.social
&
@senbillferg.bsky.social
! When we organize together, we win! And we roll deep w/
@aaup.org
@aft.org
@afthighered.bsky.social
@aftmaryland.bsky.social
@local6741.bsky.social
!
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David Van Horn
Neil Flanagan đ§±đïž
30 days ago
McDuffieâs solution to the downtown office crisis.
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www.bikewalkbuspac.com/single-post/...
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Why Transportation Advocates Need to Pay Attention to Kenyan McDuffieâs Record
As Washington, DC heads into a pivotal mayoral election, transportation advocates, climate voters, transit riders, pedestrians, and cyclists should take a close look at Mayoral Candidate Kenyan McDuff...
https://www.bikewalkbuspac.com/single-post/why-transportation-advocates-need-to-pay-attention-to-kenyan-mcduffie-s-record
about 1 month ago
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Bryan Hart
about 1 month ago
Join us tomorrow (May 20, 6:30pm, Freedom Plaza) for the Ride of Silence to remember the Allie and the many other cyclists who have been injured or killed doing what we all try to do every day - just get around safely. Details here:
ggwash.org/calendar/eve...
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David Van Horn
Spaf
about 1 month ago
In Memoriam: Peter G. Neumann (1932â2026)
cacm.acm.org/news/in-memo...
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In Memoriam: Peter G. Neumann (1932-2026) â Communications of the ACM
Membership in ACM includes a subscription to Communications of the ACM (CACM), the computing industry's most trusted source for staying connected to the world of advanced computing.
https://cacm.acm.org/news/in-memoriam-peter-g-neumann-1932-2026/
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I thought it was pretty cool, too.
about 1 month ago
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Erin Palmer
about 1 month ago
Interested in running for ANC or getting more involved in local DC politics? Free DC Ward 4 volunteers are hosting an informal gathering to chat about running for ANC, what the role involves, and neighborhood organizing. đJackie Lee's đ Saturday, March 23 đ5â7 pm Iâll be there and hope to see you!
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I still think about this workshop.
ll2.ai.mit.edu
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Lightweight Languages 2002 (LL2)
http://ll2.ai.mit.edu/
about 1 month ago
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Stan Oklobdzija
about 1 month ago
I hope the next Democratic administration can wrap their heads around the fact that redesigning America's atrocious urban environments to make mass transit, biking and walking viable is a literal matter of national security.
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David Van Horn
Laprofmme đŠŹâïžđ đđâ€ïžâđ©č
about 2 months ago
Condolences to the faculty and students being asked to come up with individual solutions to the structural problem of admin having outsourced higher ed to for-profit, PE-owned third-party tech companies
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David Van Horn
pete rodrigue
about 2 months ago
If you take all the parking spaces in DC and add up their area, they would cover over 8 square miles, or the equivalent of 3 Rock Creek Parks.
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David Van Horn
DC Bike Walk Bus PAC
about 2 months ago
Read my latest newsletter and check out upcoming May events!:
preview.mailerlite.io/preview/2067...
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David Van Horn
Drug Monkey
about 2 months ago
Triple the rate. 3 times more likely to have grants suspended. âCompared to the all NIH-funded investigators in 2024, investigators who received targeted terminations were more likely to self-identify as⊠Black/African American (n = 86, 11.9% vs 4.0%)â
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THE FAR SIDE DAILY
about 2 months ago
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Momentum Magazine
about 2 months ago
The Bike Lane Gender Gap: New Research Shows Women Ride More Where Protected Infrastructure Exists.
momentummag.com/the-bike-lan...
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David Van Horn
Tita Chico
about 2 months ago
This. "When academics in more comfortable political climates declare it unethical for the rest of us to remain and to fight, they undercut the solidarity necessary to help move toward the kind of world they want to see."
www.insidehighered.com/opinion/view...
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How Not to Talk About Colleagues in Texas, Florida (opinion)
Weâre not fighting a lost cause.
https://www.insidehighered.com/opinion/views/2026/04/27/how-not-talk-about-colleagues-texas-florida-opinion?utm_campaign=IHESocialEditorial&utm_content=opinion_|_how_not_to_talk&utm_medium=Social&utm_source=facebook
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Bryan Hart
about 2 months ago
Curious about a bike bus? Live or attend a school in Ward 5 nearish to Taylor NE? Join us for bike & roll to school day on May 6 @8am at Corner of Taylor & South Dakota Ave NE for a marshaled ride along Taylor with breakaway groups to the various nearby schools. RSVP:
docs.google.com/forms/d/e/1F...
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David Van Horn
đŠâ
2 months ago
the first rule of compilers is to have fun
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David Van Horn
UAM-UMD
2 months ago
Did ya'll hear? Huge news out of Maryland.
www.thebanner.com/education/hi...
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Maryland lawmakers pass bill granting some college professors union rights
If Gov. Wes Moore signs the bill into law, these educators will be the first granted collective bargaining rights at Marylandâs four-year public colleges.
https://www.thebanner.com/education/higher-education/faculty-union-collective-bargaining-UBY2NGSA5RF2VMSGBUVVXIVNHM/
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Dan Greene
2 months ago
I'll be in DC at Franklin Park at 5 on May Day and I'm bringing DMV's higher ed sector. See you there!
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Aparna Raj
2 months ago
Are our public spaces for people or for cars? On Council I will push to lower the cost for streateries, ease permitting timelines, and have strong oversight over DDOT to ensure consistent guidelines and quick processing.
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David Van Horn
Pam Herd
3 months ago
We do now know the NSF is proceeding with dissolving the Social and Behavioral Sciences Division. Congress might reverse it, but it is now already underway. YOU CAN NO LONGER SUBMIT FUNDING PROPOSALS TO SBE. Program officers are being moved to different parts of the agency. Call your Congress member
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David Van Horn
Ahhhhh
3 months ago
Rally at the White House tonight
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BeyondDC
3 months ago
DC adds an average of 5,300 new housing units per year. Kenyan McDuffie's big plan is 12,000 new units by 2030. That's slower than the status quo! If that doesn't tell you what you need to know about McDuffie, IDK what will.
hit.housingand.org/jurisdiction...
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David Van Horn
Charlie Warzel
3 months ago
something strange and horrible and somehow fitting that we should have a very real threat of madman civilizational destruction at the very moment when we also have humans on the dark side of the moon taking pictures that show how small, precious, and beautiful our world and existence is
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Spencer Ackerman
3 months ago
âA whole civilization will die tonightâ is the most vile thing a US president has ever said, certainly during the post-1945 era when theyâve had the power to kill civilizations with the dropping of a bomb. Iâm staring into the darkness. May this not be one of the most fateful days in human history.
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Marisa Kabas
3 months ago
If youâve never called your congressional reps before, do it right now.
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Ryan Goodman
3 months ago
âActs or threats of violence the primary purpose of which is to spread terror among the civilian population are prohibited.â Geneva Convention Additional Protocol I and Department of Defense Law of War Manual, § 5.2.2
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I know this is making the rounds, but I think it's right on the money.
ergosphere.blog/posts/the-ma...
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The machines are fine. I'm worried about us.
On AI agents, grunt work, and the part of science that isn't replaceable.
https://ergosphere.blog/posts/the-machines-are-fine/
3 months ago
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David Van Horn
Conor Shaw
3 months ago
Turns out huge permitting delays at the hands of NPSâsomething weâre all familiar with in DCâplayed a big role in the potomac interceptor failure.
www.washingtonpost.com/investigatio...
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Plan to reinforce sewer pipe was delayed for years before Potomac disaster
A Post investigation found that D.C. Water put off reinforcing an aging sewer line before it collapsed as the National Park Service undertook a prolonged environmental review.
https://www.washingtonpost.com/investigations/2026/04/02/potomac-interceptor-sewer-repair-delay/
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David Van Horn
David Zipper
3 months ago
I'd really like Trump and MAGA to stop fucking with my city's streets. Me, in Bloomberg
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Why Trumpâs War on DCâs Streets Matters
The federal effort to remove a popular bike lane in Washington, DC, is part of a broader campaign to impose control over the cityâs streets â and sideline its residents.
https://www.bloomberg.com/news/articles/2026-04-01/trump-targets-dc-bike-lanes-in-battle-over-district-s-street-policies?srnd=phx-citylab-transportation
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David Van Horn
Noam Ross
3 months ago
For
#NSF
and
#NIH
watchers, Grant Witness now has interactive data on numbers of grants and total funding obligations, broken down by institute and directorate, new awards and non-competitive renewals. The stranglehold on new awards is still a disaster.
grant-witness.us/funding_curv...
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