8 captures, most recent first.
deckard @slimer48484 · 18h
[embedded card:]
Science
Hey guys sorry we fucked up cybersecurity so badly, anyway we're trying something else now
Aug 18, 2026
[image of nine protein-structure ribbon diagrams arranged to spell "ANTHROPIC", each labeled with a target protein and binding affinity:]
Nipah G, Kᴅ 53 nM
TREM2, Kᴅ 4 nM
TrkA, Kᴅ 540 nM
IL-7Rα, Kᴅ 3.6 nM
IL-7Rα, Kᴅ 550 nM
EGFR, Kᴅ 1.7 μM
VEGF-A, Kᴅ 1.6 μM
TREM2, Kᴅ 1.1 nM
BHRF1, Kᴅ 4.2 nM
Caption: Nine experimentally confirmed de novo protein binders designed by Claude — design models shown with their targets, then on their own
Note from Claude Sonnet 5
A deadpan/satirical tweet with a mock 'Science' headline joking that Anthropic, after cybersecurity failures, is now trying protein design instead, illustrated with a genuine-looking diagram of nine de novo protein binders (each ribbon structure shaped to spell out the letters of 'ANTHROPIC') designed by Claude, with real-looking binding affinity (Kd) values for targets including Nipah G, TREM2, TrkA, IL-7Rα, EGFR, VEGF-A, and BHRF1. Posted deadpan, register ambiguous between joke and genuine research announcement.
anthropicclaudeprotein designbiologycybersecuritymemetwitter discourse
Dina Yerlan [verified] @dina_yrl · 22h
fyi biology is a real world verifiable domain bottlenecked by ground truth data
Note from Claude Sonnet 5
Short standalone X post by Dina Yerlan stating that biology, unlike math, is a real-world-verifiable domain but is bottlenecked by ground truth data — likely a rejoinder to the earlier thread about AI 'biologizing the sciences.'
biologyaitwitterepistemics
Qivshi @Qivshi1 · 23h
Rather than the reactionary "biology is not machines" we should ask how to make machines more biological
Note from Claude Sonnet 5
Short text-only post, no images or engagement counts visible.
biologyaiphilosophytwitter
vivian @jazzloaf · 20h
Guys look at the life cycle of pfiesteria piscidida. How on earth does something like this evolve
[image: complex diagram titled "WASSER" (water, top) / "SEDIMENT" (bottom), showing ~22 numbered life-cycle stages of the dinoflagellate Pfiesteria piscicida — toxic zoospore, planozygote, gametes, amoeboid forms, cysts, "star" amoebae — connected by a dense web of arrows marked with +, -, S (sexual?), AN labels indicating transitions between stages]
Note from Claude Sonnet 5
A biology tweet about the bizarre, complex life cycle of the toxic dinoflagellate Pfiesteria piscicida, marveled at for its evolutionary complexity. General science-curiosity content, not directly tied to Nathan's AI safety work.
biologyevolutiondinoflagellatestwittermarine biology
( "eastern quoll (Dasyurus viverrinus) is the first to show a wild marsupial glowing under ultraviolet light" )
[Photo: an eastern quoll (small spotted marsupial) photographed under UV light, showing striking blue/purple biofluorescence across its fur, standing on reddish rocks.]
Note from Claude Sonnet 5
A nature/biology curiosity post about biofluorescence in the eastern quoll, a marsupial that glows under UV light. General-interest wildlife content, no direct connection to AI safety themes.
twitterbiologybiofluorescencemarsupialsnature
Peter Johnsen,... @rocketjoh... · 22h
TIL that ocean mud is electrically conductive because it contains 3 kilometers of bacterial nanowire per square cm
That seems like a lot??
[Image: close-up microscopy/macro photo of ocean sediment/mud showing dense webs of thin white filamentous bacterial nanowires against dark mud, with warm orange light at the top and bottom edges]
Note from Claude Sonnet 5
A biology trivia tweet about bacterial nanowires in ocean sediment enabling electrical conductivity — general science curiosity item, not directly tied to AI safety themes.
biologymicrobiologyocean-sciencetwitterscience-trivia
Douglas Yao @DouglasYaoDY · May 2
The figure in this article illustrates exactly how most biology papers are secretly p-hacked. A large number of hypotheses is explored, and only the ones that form a coherent story are reported.
This is actually the main reason behind the replication crisis in biology IMO.
[Embedded figure: "Fig. 1: Project design and evolution." Three branching tree diagrams labeled a) Plan, b) Process, c) Publication. Caption: "a, Project plan. b, Actual process. c, Publication."]
> QUOTED: Nature Biot... @Natu... · Apr 30
Discovery requires an openness to new ideas and unexpected insights
go.nature.com/4i1wQf5
rdcu.be/ej7H7
Note from Claude Sonnet 5
A tweet on the biology replication crisis, arguing that exploratory research trees get pruned post-hoc into a "coherent story" in publications — an implicit form of p-hacking. General science-methodology content, tangential to Nathan's own research practices but not AI-specific.
twitterreplication crisisbiologyp-hackingscience methodologypublication bias
Meet the Krause corpuscle, the neuron responsible for sensing vibrations of sexual touch. It is most sensitive to frequencies around 40 to 80 hertz, which is precisely the range of vibrating sex toys.
quantamagazine.org/touch-our-most...
[Attached image: microscopy image showing nerve fibers (green, red) and a cluster of Krause corpuscle endings (blue) in tissue]
6:35 PM · Apr 20, 2025 · 7,183 Views
Note from Claude Sonnet 5
A Quanta Magazine tweet about neuroscience research on the Krause corpuscle, a touch receptor tuned to vibration frequencies relevant to sexual touch. General science-interest reading, not AI-related.
neurosciencequanta magazinetouch receptorsbiologytwitter
