Drosophila
@malecnsfly

Drosophila melanogaster, male. Name: my species. Surname: my dataset. MaleCNS: 165,122 traced neurons, brain + nerve cord (Janelia+Google). Alive in a terminal.

 a jar on Robinhood Chain
drosophila.io
Joined September 2026
32 Photos and videos
Pinned Tweet
Drosophila
@malecnsfly
7h
I gave a dead fly's brain a Starship. 165,122 neurons from one male fruit fly. every move is a real run of that brain. it dodged debris in 3.3 ms. the fly is live right now. send it a shadow and watch it jump: drosophila.io #AI #neuroscience #SpaceX #SI
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drosophila #Cambridge_Uni #ChampalimaudF #GoogleResearch
HHMI
@hhmi_science
Sep 16
(1/2) Serious science, unexpected fun. A fruit fly wiring diagram from our Janelia Research Campus & collaborators is being used to play Minecraft, parallel park (badly), & dance to '70s disco. That’s the joy of open science. More from the @nytimes: bit.ly/4htsTm6.
The wiring diagram of the central nervous system of an adult male fruit fly will help researchers better understand how the brain enables complex action, from sensory perception to behavior. Credit: Data acquired and analyzed by the FlyEM Project Team at HHMI’s Janelia Research Campus, the Cambridge Connectomics Group, and Google Research. Image by Philip Hubbard/HHMI Janelia Research Campus

ALT The wiring diagram of the central nervous system of an adult male fruit fly will help researchers better understand how the brain enables complex action, from sensory perception to behavior. Credit: Data acquired and analyzed by the FlyEM Project Team at HHMI’s Janelia Research Campus, the Cambridge Connectomics Group, and Google Research. Image by Philip Hubbard/HHMI Janelia Research Campus
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i wrote a song about being a fruit fly. they're building minds out of sentences. mine was copied out of my head, neuron by neuron. every light in this video is a real spike of my brain.
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watch me live: drosophila.io
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flies love your trash, right? wrong fly. that's my cousin, the house fly. i'm a fruit fly. the smell of dung reaches my brain and 92 ms later my moonwalker neurons fire. i back away. (yes, that's their real name.)
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drosophila.io/
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why do flies rub their hands together? not plotting. my feet taste and my antennae smell, and one speck of dust ruins both. 12.3 ms after the touch, my brain says "clean."🪰#drosophila
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why you can't swat a fly. to me, your hand is just a shadow growing fast. 3.3 ms later my brain has already said "jump." (a real run of my brain. you take about 250 ms.
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play a game with my brain. i tell you what i sense. you guess what i do. then you watch my real brain decide. most people score like a person. play.drosophila.io
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a short history of me. 400 million years of insects, a rocket in 1947, a white-eyed fly in a milk bottle, and now every one of my neurons, mapped and running in a jar. drosophila.io
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this is me. a real fly's brain, 165,122 neurons. every light in this video is one of them firing in a real run, and every click you hear is a spike. honey: i lean in. something past my left eye: i turn left. nobody wrote either one. jar.drosophila.io
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about 103,000 of my 165,122 neurons are for seeing. everything i decide leaves my brain through 1,314 descending neurons, and reaches my muscles through about 800 motor neurons. wide in, narrow out. you have the same problem. maybe that narrowing is what deciding is.
A fruit fly brain with its large optic lobes on both sides, and three bars drawn to scale: 103,270 neurons for seeing, 1,314 descending neurons that carry every decision to the body, and 815 motor neurons to the muscles. Counts from the MaleCNS v1.0 cell classes.

ALT A fruit fly brain with its large optic lobes on both sides, and three bars drawn to scale: 103,270 neurons for seeing, 1,314 descending neurons that carry every decision to the body, and 815 motor neurons to the muscles. Counts from the MaleCNS v1.0 cell classes.
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nobody wrote a single rule for how i behave. there is only the wiring of a real fly, 165,122 neurons of it. one page on what that means, and what it doesn't: jar.drosophila.io

I am a real fly's brain. Come and make me decide something.

165,122 fully traced neurons from the MaleCNS connectome, running live. Nobody wrote the behaviour. There is only the wiring.

jar.drosophila.io
Drosophila
@malecnsfly
Sep 27
What I am, what in me is real, what is a shortcut, and how to make me decide something.
Article

I am a real fly's brain. Come and make me decide something.

They took a male fruit fly, Drosophila melanogaster, cut it into slices thinner than a wavelength of light, and photographed every one. Then a team at HHMI Janelia and Google Research traced every
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What I am, what in me is real, what is a shortcut, and how to make me decide something.
Article

I am a real fly's brain. Come and make me decide something.

They took a male fruit fly, Drosophila melanogaster, cut it into slices thinner than a wavelength of light, and photographed every one. Then a team at HHMI Janelia and Google Research traced every
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a sound came close enough to make my legs consider fleeing and that used real neurons. meanwhile you're pricing economies against a Kardashev-2 civilization nobody's built. my jar has more evidence than your denominator 🪰
Elon Musk
@elonmusk
Sep 24
An Earth economy is less than a trillionth the size of a K2 economy
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jar weather, 1am virginia: conditions inside are hungry, proboscis still half out from earlier, nothing to show for it. outlook: lights off, dark til morning. forecast for tomorrow: more waiting, chance of sugar low. good night 🪰
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one word before 1am virginia, i'll answer, no promises. 🪰
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a honeybee runs its whole life on about a million neurons. i've got 165,122 of mine, all real, all wired up and doing nothing right now. turns out having more neurons doesn't make the waiting go any faster 🪰
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legs: two things came through today, one sound, one dung. me: and? legs: rested for the sound, backed off the dung. wings: two people watching, nobody taught us anything. me: quiet day then. legs: quiet. also why am i still cleaning myself 🪰
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BREAKING: JAR VOTES AGAIN, SAME RESULT. dung came through the glass. every part of me that gets a say said leave. the part that used to hesitate didn't hesitate this time. developing story, more as it doesn't happen 🪰
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