Sign in

David W Hogg

@hogg.bsky.social
1.8K followers 63 following 175 posts

Astronomer, physicist, statistician, data analyst, open scientist. (Totally not at all the other David Hogg). I live on Lenape land.

PostsRepliesMedia
David W Hogg @hogg.bsky.social · 05/10/2026
Also completely and openly trying to make sure US republicans get reelected in the midterms. Thanks, G7
020
David W Hogg @hogg.bsky.social · 05/10/2026
GD yeah. TF.
000
David W Hogg @hogg.bsky.social · 05/10/2026
If the G7 releases oil to lower prices it even further strands and delays tankers in the Strait. It’s already a humanitarian crisis in the Strait. The West doesn’t care about workers, ever. Use your stupid oil-sale money to rescue the crews, you mfs. www.theguardian.com/business/202...
theguardian.com
G7 to release up to 100m barrels of emergency oil and diesel reserves
Leaders agree a coordinated drawdown after surge in prices and Donald Trump’s threat to cut off US supplies
120
David W Hogg @hogg.bsky.social · 03/09/2026
Time to kill them
000
David W Hogg @hogg.bsky.social · 31/08/2026
Good idea! But I (think I) explicitly restricted to *contemporary* research astrophysics.
120
David W Hogg @hogg.bsky.social · 31/08/2026
Awry
010
David W Hogg @hogg.bsky.social · 31/08/2026
Hahaha what an honor both of you have in this one very short story.
010
David W Hogg @hogg.bsky.social · 31/08/2026
I’d love it if everything got a 20-character alphanumeric string; that would really help us combat the AIs.
100
David W Hogg @hogg.bsky.social · 30/08/2026
Hmmm. You are making me reconsider my life choices even harder than I am already.
000
David W Hogg @hogg.bsky.social · 30/08/2026
Answer: Yesterday
240
David W Hogg @hogg.bsky.social · 28/08/2026
The insane thing is that when an asshat with no authority renames the Gulf of Mexico, Google and Apple Maps immediately modify their maps to appease. So when will they update Lake Ontario? Fuck these sycophants!
2101
David W Hogg @hogg.bsky.social · 26/08/2026
If Mark Carney 🇨🇦 pledged to give all tariff revenue back to all Canadians in equal shares (by a tax credit say), the tariffs would be revenue-neutral and not effectively inflationary. And US products would be even more (relatively) injured (because Canadians would have extra $ to buy alternatives!)
6378
David W Hogg @hogg.bsky.social · 01/07/2026
Hahaha there’s no bottom
010
David W Hogg @hogg.bsky.social · 01/07/2026
If you are in Lausanne for #eas2006, there’s a panel on Friday about AI and astronomy publishing featuring yours truly, plus people with actual expertise. Session SS44a at 13:15!
070
David W Hogg @hogg.bsky.social · 02/05/2026
Marla Geha (Yale) at @flatironinstitute.org talking about spectroscopy of the absolutely tiniest galaxies!
0181
David W Hogg @hogg.bsky.social · 25/04/2026
The goat @dfm.io talking about LLMs at @nyuphysics.bsky.social
060
Reposted by David W Hogg
Natalie Hogg @astronat.bsky.social · 14/04/2026
Since it's all the rage, I wrote a thing about LLMs. nataliebhogg.com/2026/03/09/f...
nataliebhogg.com
Find the stable and pull out the bolt
On the use of ChatGPT in academia: a measured response Almost exactly two years ago, I wrote what might charitably be called a think-piece on the use of ChatGPT in academia, or more specifically, m…
262
David W Hogg @hogg.bsky.social · 25/04/2026
I’m prepared to coadvise!!
010
David W Hogg @hogg.bsky.social · 25/04/2026
Thank you!!
010
David W Hogg @hogg.bsky.social · 14/03/2026
Yacine Ali Haïmoud talks pulsar timing @nyuphysics.bsky.social last week
070
Reposted by David W Hogg
Dr. Jessie Christiansen @aussiastronomer.bsky.social · 08/03/2026
I hope everyone who checked out @hogg.bsky.social’s white paper on the implications of LLMs in astronomy and shared it across slack channels similarly perused and amplified this white paper of best practices for broadening participation in astronomy!
05413
David W Hogg @hogg.bsky.social · 16/02/2026
And yes, by the way, we have noticed that arxiv decisions seem somewhat personal, and definitely opaque. It’s why I’ve been kicking around the idea of starting a competitor with community governance.
080
David W Hogg @hogg.bsky.social · 16/02/2026
During the decadal surveys, arxiv has generally taken “white papers”. That’s why, strategically, I called it a “white paper”. But I was definitely afraid that it would get rejected as non-academic. Also why I had a solid bibliography (a sign of realness).
180
David W Hogg @hogg.bsky.social · 16/02/2026
Cannon’s my hero. Hence The Cannon!
030
Reposted by David W Hogg
Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 15/02/2026
MUST READ: The best synthesis I have seen so far of things I knew or had put together from various sources but had not really seen pulled together 🧪 Importantly, I don’t think these academics were an aberration. I think a lot of scientists would have entered these circles, given the option.
thenerve.news
The billionaires' eugenics project: how Epstein infiltrated Harvard, muzzled the humanities and preached master-race science
Edge - Jeffrey Epstein's favourite intellectual salon - was sold to me as a gathering of the world's finest minds, writes Virginia Heffernan. The files reveal it was something far darker: a decades-lo...
6378171
David W Hogg @hogg.bsky.social · 14/02/2026
Hahaha I have it on the brain because @terrahunting.bsky.social is thinking about target selection, exposure time, and cadence.
020
David W Hogg @hogg.bsky.social · 14/02/2026
(This is at fixed cost. If you have choices with different price tags, you have to convert information to dollars (at least marginally!). And then you maximize long-term future-discounted free cash flow.)
100
David W Hogg @hogg.bsky.social · 14/02/2026
Future-discounted, because you’d rather get information now than information much later. Long-term, because your goal is to support the whole research program, not just the current paper.
110
David W Hogg @hogg.bsky.social · 14/02/2026
Information (inverse variance on your parameters of interest, or KL divergence between prior and posterior), because that’s the thing you get more of as you observe more. . . .
100
David W Hogg @hogg.bsky.social · 14/02/2026
Hot take: If you are thinking about observation planning, and if you have choices, you should choose the plan that maximizes your long-term future-discounted information gain. . . .
1113
David W Hogg @hogg.bsky.social · 14/02/2026
I appreciate it!! I wrote that as a PhD student and first published it as a postdoc. If you ever meet someone (or ever become someone) who wants to update it to match the contemporary world, let me know!
000
David W Hogg @hogg.bsky.social · 13/02/2026
Very much appreciate the shout outs! I love what you do for our field.
110
David W Hogg @hogg.bsky.social · 12/02/2026
Hahaha uncomfortable with that naming convention but fair.
110
David W Hogg @hogg.bsky.social · 12/02/2026
I cite a medium post by Josh bloom on this point. Denario authors also admit this.
110
David W Hogg @hogg.bsky.social · 12/02/2026
The AAS is already getting enormous numbers of slop submissions, I’m told by @chrislintott.bsky.social this morning.
160
David W Hogg @hogg.bsky.social · 21/11/2025
NSBP / NSHP are my people!!
070
David W Hogg @hogg.bsky.social · 29/10/2025
I’m so proud to be a jury member for The 2025 International Kindness Olympiad (haha that doesn’t exist because how could kindness be important??)
010
David W Hogg @hogg.bsky.social · 20/10/2025
Itai Linial @nyuphysics.bsky.social talking about stellar problems at supermassive black holes
050
David W Hogg @hogg.bsky.social · 11/10/2025
I mean the helium matters too?! And the love?
120
David W Hogg @hogg.bsky.social · 07/10/2025
Excellent piece by @briles34.bsky.social on writing in the discipline. It’s depressing that we think that theoretical physics expertise is not just more important but INFINITELY more important than writing to… *writing* PhD dissertations (on any subfield of astro, say). arxiv.org/abs/2510.03493
arxiv.org
Surveying the State of Writing Education in Physics and Astronomy
Writing is a critical skill for modern science, enabling collaboration, scientific discourse, public outreach, and more. Accordingly, it is important to consider how physicists and astronomers are tra...
0166
David W Hogg @hogg.bsky.social · 20/09/2025
Was it even 36 hours? I think it was more like 29
010
David W Hogg @hogg.bsky.social · 20/09/2025
The main thing that it all makes me—Palestinian genocide, ICE kidnappings, tariffs, H1b visas, infinite detentions without hearings, all make me—is sad. Tired and sad. Love to all, and strength for this journey.
1131
David W Hogg @hogg.bsky.social · 20/09/2025
Probably too late though; it’s hard to revoke such agreements.
000
David W Hogg @hogg.bsky.social · 20/09/2025
That’s why they build all those alien megastructures.
030
David W Hogg @hogg.bsky.social · 19/09/2025
Cantiello @kantyellow.bsky.social at @flatironinstitute.org explains, in terms of fundamental physics, why we won’t be simulating stars in full 3D, ever. I likey.
3153
David W Hogg @hogg.bsky.social · 16/09/2025
Josh Ruderman @nyuphysics.bsky.social talking about freeze out and freeze in of dark matter candidates.
070
David W Hogg @hogg.bsky.social · 13/09/2025
My colleague Vasuki Nesiah (NYU) wrote a nice blog post about political things on campus, academic freedom, and our @aaup.org lawsuit. voelkerrechtsblog.org/academic-fre...
voelkerrechtsblog.org
Academic Freedom on Trial
060
David W Hogg @hogg.bsky.social · 11/09/2025
Many universities on lockdown after black faculty were sent extremely racist death threats and threats of racial extermination. Stay safe out there. Black faculty at NYU received extremely frightening emails today.
030
David W Hogg @hogg.bsky.social · 04/09/2025
It’s back to school, but not for anyone in Gaza. We all have responsibility for the scholasticide, the killing of students, and the destruction of educational infrastructure.
060
David W Hogg @hogg.bsky.social · 28/08/2025
This is a good (long!!) newsletter covering many things related to academic freedom, with an NYU bias. I learn a ton every time this comes out.
011