David W Hogg

David W Hogg

@hogg.bsky.social

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

1,717 Followers 62 Following 156 Posts Joined Aug 2023
3 weeks ago

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.

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3 weeks ago

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).

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3 weeks ago

Cannon’s my hero. Hence The Cannon!

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3 weeks ago
Preview
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...

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.

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3 weeks ago

Hahaha I have it on the brain because @terrahunting.bsky.social is thinking about target selection, exposure time, and cadence.

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3 weeks ago

(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.)

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3 weeks ago

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.

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3 weeks ago

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.
. . .

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3 weeks ago

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.
. . .

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3 weeks ago

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!

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3 weeks ago

Very much appreciate the shout outs! I love what you do for our field.

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3 weeks ago

Hahaha uncomfortable with that naming convention but fair.

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3 weeks ago

I cite a medium post by Josh bloom on this point. Denario authors also admit this.

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3 weeks ago

The AAS is already getting enormous numbers of slop submissions, I’m told by @chrislintott.bsky.social this morning.

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3 months ago
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NSBP / NSHP are my people!!

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4 months ago

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??)

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4 months ago
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Itai Linial @nyuphysics.bsky.social talking about stellar problems at supermassive black holes

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4 months ago

I mean the helium matters too?! And the love?

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5 months ago
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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...

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

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5 months ago

Was it even 36 hours? I think it was more like 29

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5 months ago

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.

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5 months ago

Probably too late though; it’s hard to revoke such agreements.

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5 months ago

That’s why they build all those alien megastructures.

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5 months ago
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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.

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5 months ago
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Josh Ruderman @nyuphysics.bsky.social talking about freeze out and freeze in of dark matter candidates.

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5 months ago
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Academic Freedom on Trial

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...

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5 months ago

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.

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6 months ago

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.

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6 months ago

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.

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6 months ago
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Gaza Biennale, featuring works by artists from the war-torn strip, will come to New York City The roving exhibition—previously staged in London, Berlin, Athens and elsewhere—is a beacon of resilience amid destruction and turmoil

Gaza Biennale in NYC

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