John F. Wu
3.4K posts
@jwuphysics
Associate Astronomer and Applied AI @SpaceTelescope. Secondary appointments in @JohnsHopkins Astro + CS. Opinions my own. He/him. 🦋 @jwuphysics.bsky.social
NGL, I now really want the Mets to never win again. Sorry, Met fans, but it'd guarantee an entire summer of hilarious copy. It would not, however, discredit socialism, seeing as historical Mets failure is hardly unprecedented.
I need more examples of people in academia who haven't had a linear path at all and missed years on the way to PhD and still did their PhD. I don't wanna feel all isolated here
Oxford AI professor Michael Wooldridge: "ChatGPT doesn't understand anything. It's essentially doing some fancy statistics."
This is the most incredible sauna experience I’ve ever been to. Bota Bota in Montreal. I still think about it to this day. It’s a floating spa on a converted ferry. With multiple levels with several saunas, steam baths, whirlpools, cold plunges, lounges, cafe. Strong silence policy thought (you can't talk) Views of the Montreal skyline and the hot tubs are amazing during the winter It’s only $55 for a session. Worth making the trip to Canada just for this.
The Nancy Grace Roman Space Telescope is in final preparations for an early September launch, eight months AHEAD of schedule and UNDER budget. This milestone is the result of more than a decade of dedication and millions of hours of work by NASA and our industry partners. Their commitment is what’s making this moment possible and helping drive Gold Standard Science. Roman will help answer some of the biggest questions in science, investigating dark matter, dark energy, and the structure of the universe. Its images will be so large and detailed, there isn’t a screen in existence big enough to display them. This is just the beginning.
Only one chance in this lifetime… Like watching sunset at the beach from the most foreign seat in the cosmos, I couldn’t resist a cell phone video of Earthset. You can hear the shutter on the Nikon as @Astro_Christina is hammering away on 3-shot brackets and capturing those exceptional Earthset photos through the 400mm lens. @AstroVicGlover was in window 3 watching with @Astro_Jeremy next to him. I could barely see the Moon through the docking hatch window but the iPhone was the perfect size to catch the view…this is uncropped, uncut with 8x zoom which is quite comparable to the view of the human eye. Enjoy.
Wow I can already say after just 5 hours using @AnthropicAI Opus 4.7 that this is the first model that "gets" what I'm doing when I'm working. It feels aligned with me in a way no previous model did. (4.6 actively worked against me. I hated it. So this is *very* exciting!)
New research: we propose *covariance pooling* as a better replacement for mean pooling that improves probing for sequence-level properties. E.g., genomic model embeddings are often mean-pooled to understand genes - but that throws away all info about feature co-occurrence! (1/3)
