# Fly Brain Simulations
In early September 2026, HHMI Janelia and Google Research released the first complete wiring diagram of an adult male fruit fly's brain, and within days developers started hooking the simulated neurons up to Beat Saber, Minecraft, and crypto trading bots. The absurd experiments quickly became one of the most-shared science memes of the year.
## Origin
The scientific catalyst dropped on September 3rd, 2026, when HHMI Janelia's FlyEM team, the Cambridge Connectomics Group and Google Research published MaleCNS v1.0, a complete wiring diagram of an adult male fruit fly's central nervous system covering roughly 166,000 neurons and 125 million synapses[1]. The paper, "Sexual dimorphism in the complete connectome of the Drosophila male central nervous system," appeared in Cell alongside an openly downloadable dataset[1]. Later that day the @NewsFromGoogle account on X posted about the release, and the tweet passed 13 million views within a week[6].
The meme format itself emerged a few days later. On September 7th, 2026, YouTuber Ro0oney uploaded "I Put A Fly's Conscious Brain into Minecraft," which showed a running simulation of the connectome controlling an in-game character[7]. HHMI, Janelia and Google are the SUBJECTS of the meme, not its authors, so the actual creator of the format is best treated as unknown, with Ro0oney's Minecraft video the earliest widely shared example.
- **Platform:** YouTube / X (viral spread)
- **Creator:** Unknown (dataset released by HHMI Janelia and Google Research)
- **Date:** 2026
## Overview
Fly Brain Simulations, also known as Fruit Fly Brain Mapped or Fly Playing Beat Saber, refers to a wave of experimental videos where hobbyist coders wire the newly released simulated brain of an adult male Drosophila into whatever software they can think of. The joke is the mismatch between a serious neuroscience milestone, a 166,000-neuron wiring diagram traced from electron-microscope slices of a real fly[1], and the goofy tasks people give the resulting virtual insect, from rhythm games to Coinbase trades[2].
Most of the popular clips follow the same beat: a developer describes how they hooked the fly's sensory neurons to some input (a webcam feed of Beat Saber blocks, a Minecraft world, a bitcoin price ticker) and its motor neurons to some output, then lets the leaky-integrate-and-fire simulation loose. The comedy comes from watching a bug's nervous system try to parallel park a car or day-trade crypto while the creator narrates in a straight-faced tone[3][5]. The tag "the fly brain can [X]" quickly turned into a caption format on X[3].
## How It Spread
The clips exploded on X in the week after the dataset landed. On September 8th, 2026, user @_lyraaaa_ posted a video captioned "the fly brain can play beat saber," which pulled in roughly 22 million views and 84,800 likes in two days and set the template for the caption format[3]. Two days later, on September 10th, @nftechie_ (Alex Wormuth) shared "I gave the fly brain $100 to trade bitcoin," explaining that dopamine neurons in the simulation lit up whenever the fly turned a profit on Coinbase; the post cleared 3.4 million views in a day[4].
Later on September 10th, @alright_mark (posting as Breg Grockman) put the fly through "the ultimate test: parallel parking," using the simulated brain to steer a car in a driving sim. That clip picked up about 1.5 million views and 16,000 likes in 24 hours[5]. Google Research's own explainer on the connectome release, which framed the map as a stepping stone toward understanding larger brains, kept getting linked back into the meme threads as context[2].
YouTube and TikTok picked up the format quickly with longer explainer-style edits. Ro0oney's Minecraft video crossed 241,000 views in three days[7], while TikTok reposts of the Beat Saber and trading-bot clips circulated widely through science-meme accounts. KYM catalogued the wave under the Fly Brain Simulations / Fruit Fly Brain Mapped entry as it kept growing through mid-September[6].
## How to Use
The template is loose: pick any interactive system with clear inputs and outputs, map the fly's visual or antennal neurons to the input, map some motor neurons (often the ones that drive wing or leg movement) to the output, and post a short clip captioned in the pattern "the fly brain can [task]" or "I gave the fly brain [thing]." Bonus points, per popular examples, for stimulating dopamine neurons as a reward signal, as @nftechie_ did for profitable bitcoin trades[4].
## Frequently Asked Questions
### What is Fly Brain Simulations?
It's a meme built around videos where developers connect a simulation of a real fruit fly's brain, released as open data by HHMI Janelia and Google Research in September 2026, to games and apps like Beat Saber, Minecraft, and crypto trading bots[1][3].
### Where did Fly Brain Simulations come from?
The dataset came from the MaleCNS v1.0 connectome released on September 3rd, 2026[1], and the meme format took off after YouTuber Ro0oney's Minecraft video on September 7th and @_lyraaaa_'s Beat Saber clip on September 8th[3][7].
### What does Fly Brain Simulations mean?
The joke centers on treating a serious 166,000-neuron scientific map as a toy "brain" you can plug into anything, then watching a virtual fly try to do human tasks like day-trading bitcoin or parallel parking[4][5].
### How do you use Fly Brain Simulations?
People typically wire the fly's sensory neurons to a game or app input, its motor neurons to an output, and post a short video captioned in the "the fly brain can [task]" style popularized by @_lyraaaa_ on X[3].
### Is Fly Brain Simulations still popular?
As of mid-September 2026 it's still trending, with new simulation clips landing daily on X and TikTok and posts like the Beat Saber and bitcoin videos each pulling millions of views within hours[3][4].
## References
1. [https://research.google/blog/a-connectomics-milestone-mapping-the-complete-male-fruit-fly-brain/]()
2. [https://research.google/blog/a-connectomics-milestone-mapping-the-complete-male-fruit-fly-brain/#context]()
3. [https://x.com/i/status/2097527368919470162]()
4. [https://x.com/i/status/2098012107652391357]()
5. [https://x.com/i/status/2098085928489177142]()
6. [https://knowyourmeme.com/memes/fly-brain-simulations-fruit-fly-brain-mapped]()
7. [https://www.youtube.com/watch?v=BUkLWjcoBc0]()
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Source: https://meme.com/memes/fly-brain-simulations-fruit-fly-brain-mapped
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