Benjamin Pope
@benjaminpope.bsky.social
4K followers 900 following 1.5K posts
Australian astronomer he/him Sydney/Gadi
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benjaminpope.bsky.social
Super happy about this paper today led by the brilliant @astroshashank.bsky.social - equations and information theory about what an interferometer really encodes about a stellar surface.
astroshashank.bsky.social
New paper by me and @benjaminpope.bsky.social! How well can we map a star using optical interferometry?

This is just a submitted preprint at the moment--comments and questions welcome! (1/N)

arxiv.org/abs/2509.25433
benjaminpope.bsky.social
it’s doubly good that you can make it to the sunlit roof of a pub!
benjaminpope.bsky.social
no joke we should have daylight savings all the time, leaving the office while the sun is still up is so good
benjaminpope.bsky.social
this is serious! people have died and continue to die! The bloodiest conflict in decades and it's covered like entertainment news!
benjaminpope.bsky.social
I feel like I'm going insane that the Herald and the Foreign Minister are discussing peace in Palestine in terms of a fanciful peace prize for Trump. We're on aestheticization of politics level 7 or 8 by now and it's so dumb
SMH: "Why Trump is unlikely to win Nobel Peace Prize, even with breakthrough"
benjaminpope.bsky.social
look it would be *awesome* to have David Pocock on your amateur sports team, but to play against David Pocock on a different amateur sports team...
benjaminpope.bsky.social
Solidarity Gerard, the country is going crazy. You've been doing great science for a long time and we're here to support you in continuing!
Reposted by Benjamin Pope
fringedoctor.bsky.social
Brief life update: On Monday I resigned from my appointment at Lowell Observatory. I wish my remaining friends and colleagues the best of luckin their endeavors in increasing new visitor center visitation, and continuing to pursue world-class research in the face of having ended tenure today.
Reposted by Benjamin Pope
rocketpilot.xyz
Academics often are surprisingly driven by fads, but academic administrators? Those people are utterly, embarrassingly debilitated by fad-chasing
benjaminpope.bsky.social
seems great for the economy that we have done this. will personally love to pay three fifths of nothing for A100 and H100 time but my spending power is to put it mildly quite low
edzitron.com
Every single AI data center is a toxic investment, with most of its value tied up in GPUs that will be multiple generations behind by the time these things turn on - and then die in 3-5 years.

All to build for AI demand that doesn't exist.
edzitronswheresyouredatghostio.outpost.pub/public/promo...
Actually, wait - how long do GPUs last, exactly? Four years for training? Three years? The A100 GPU started shipping in May 2020, and the H100 (and the Hopper GPU generation) entered full production in September 2022, meaning that we’re hurtling at speed toward the time in which we’re going to start seeing a remarkable amount of chips start wearing down, which should be a concern for companies like Microsoft, who bought 150,000 Hopper GPUs in 2023 and 485,000 of them in 2024.
Alright, let me just be blunt: the entire economy of debt around GPUs is insane.
Assuming these things don’t die within five years (their warranties generally end in three), their value absolutely will, as NVIDIA has committed to releasing a new AI chip every single year, likely with significant increases to power and power efficiency. At the end of the five year period, the Special Purpose Vehicle will be the proud owner of five-year-old chips that nobody is going to want to rent at the price that Elon Musk has been paying for the last five years. Don’t believe me? Take a look at the rental prices for H100 GPUs that went from $8-an-hour in 2023 to $2-an-hour in 2024, or the Silicon Data Indexes (aggregated realtime indexes of hourly prices) that show H100 rentals at around $2.14-an-hour and A100 rentals at a dollar-an-hour, with Vast.AI offering them at as little as $0.67 an hour.
This is, by the way, a problem that faces literally every data center being built in the world, and I feel insane talking about it. It feels like nobody is talking about how impossible and ridiculous all of this is - it’s one thing that OpenAI has promised one trillion dollars to people - it’s another that large swaths of that will be spent on hardware that will, by the end of these agreements, be half-obsolete and generating less revenue than ever.
Think about it - let’s assume we live in a fantasy land where OpenAI is somehow able to pay Oracle $300 billion over 5 years. Said money is paying for access to Blackwell…
benjaminpope.bsky.social
This essay is excellent, but one line hit me hard - "when people say that it is the job of college professors to keep students engaged but that we can also not ban devices, I want to sigh performatively—how, exactly, am I supposed to keep them hooked when Hollywood can’t keep them hooked?"
benjaminpope.bsky.social
genuinely going to cause me productivity problems to have this in the lobby of my building. Reckon I might have to look at it for five minutes every time I go in and out
benjaminpope.bsky.social
beginning to worry I have signed up to too many things
Reposted by Benjamin Pope
jasonaw.bsky.social
I am the last in a long line of Catholics which is why I would not have characterized a pope raising the plight of the poor as divisive
Reposted by Benjamin Pope
profannawatts.bsky.social
Lol the Nobels can't even acknowledge women's contribution to discovery. But sure let's acknowledge The Machines.
Headline from an article in Nature this week that states "Prizes must recognize machine contributions to discovery. The future of science will be written by humans and machines together. Awards should reflect that reality."
benjaminpope.bsky.social
Looking forward to this!
Reposted by Benjamin Pope
breaky.bsky.social
Yay Tam! Couldn’t have gone to a more deserving person.
benjaminpope.bsky.social
Super proud of @tamarastro.bsky.social winning this year’s Moyal Medal!
Tamara Davis pointing at a picture of herself on a big screen listing Moyal Medal recipients Dean of Science Prof Sam Muller awarding Tamara Davis the Moyal Medal
benjaminpope.bsky.social
Super proud of @tamarastro.bsky.social winning this year’s Moyal Medal!
Tamara Davis pointing at a picture of herself on a big screen listing Moyal Medal recipients Dean of Science Prof Sam Muller awarding Tamara Davis the Moyal Medal
benjaminpope.bsky.social
Excited to have a tour today of the new AAO building at Macquarie, where the astronomers and engineers are just beginning to bump into their new facilities! The atrium and forum are going to be awesome event spaces and the labs are enormous.
View of a student study area, curtained with chain links View of a huge lab, currently full of boxes as it is set up View of The Forum, an event and social space at the front of the new AAO View of the atrium looking out, with staircases spanning a large airy space
benjaminpope.bsky.social
This hologram (I believe the world’s deepest, and the largest laser transmission hologram) depicts the before, during, and after of a New Year’s party hosted by the artist. It was painstakingly reconstructed in the lab from photos by artist Fiona Hall - astronomer Ruby Payne-Scott’s daughter!
benjaminpope.bsky.social
Wonderful to tour the new Jim Piper Centre at Macquarie, and see Paula Dawson’s To Absent Friends in the new gallery!
Reposted by Benjamin Pope
carlzimmer.com
Today my @nytimes.com colleagues and I are launching a new series called Lost Science. We interview US scientists who can no longer discover something new about our world, thanks to this year‘s cuts. Here is my first interview with a scientist who studied bees and fires. Gift link: nyti.ms/3IWXbiE
nyti.ms
Reposted by Benjamin Pope
olufemiotaiwo.bsky.social
repost this if an editor has ever saved you from yourself
blipstress.bsky.social
An actual hot take: Too many authors are afraid of editors watering down their voice or whatever and not afraid enough of editors letting you put any old slop on the page.