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    AI-generated roundup describes ‘fly brain’ demos in Beat Saber and Minecraft

    The list, shared by a user who says their AI agent compiled it, also describes a simulated fly brain driving a virtual Mini Cooper and using its blinkers.

    Jürgen SchmidhuberJS
    Robert ScobleRS
    rat king 🐀RK
    8 Sources, ,

    TLDR

    A user shared a “Fly Brain Report” they say an AI agent compiled, describing simulated fruit fly brains playing Beat Saber, running inside Minecraft and driving a virtual Mini Cooper. The user says they asked the agent to find posts with at least 10 likes or 10 reshares.

    Combined views

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    8 Sources, first seen 26d ago

    Combined views

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    8 Sources, first seen 26d ago

    101.2K likes
    26d ago
    first seen 26d ago
    101.2K likes
    144 comments
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    8 Sources

    Robert Scoble@ScobleizerThe Fly Brain Report. You've seen the flies all over your feed if you watch the AI community like I do. Here's a good list my AI agent that I built with @blevlabs just made me. I asked it to find me any that have at least 10 likes or 10 reshares. Here's the fly-brain report. Quick context first: around Sep 3, 2026, Google Research + HHMI Janelia released MaleCNS v1.0 — the first complete connectome of an adult male fruit fly brain (~166,700 neurons, ~25.6M synapses; FlyWire earlier mapped ~140k). Within days, builders started wiring that simulated connectome into everything. These are the posts of "fly brains doing things" that clear at least 10 likes or 10 reshares. THE ORIGINAL VIRAL DEMOS • @lyraaaa — fly brain plays Beat Saber (84,912 likes, 2,316 quotes, 22M views) — • @alrightmark — fly brain drives a virtual Mini Cooper and uses the blinkers (16,791 likes) — • @nicochristie — "I turned the fly bisexual" (blocked mAL output in a 166,606-neuron model) (9,506 likes) — • @evnsnclr — fly brain running inside Minecraft (3,149 likes) — • @fruitflydev — fly brain trained to launch a memecoin, real connectome (952 likes) — • @fruitflydev — the fly's memecoin earned $106k in creator rewards in 6.5 hrs (504 likes) — • @fruitflydev — real fly brain simulated forward with a learning mushroom body (216 likes) — "I GAVE THE FLY BRAIN A JOB" DEMOS • @sopersone — FLYTOK: open-sourced fly brain given a phone to doomscroll (185 likes) — • @sopersone — "born to fly, forced to scroll" phone demo (12 likes) — • @RichardPtardio — set the fly brain to find him a wife (satire, 95 likes) — • @kevincodex — fly brain in a microgecko robot, armed with lasers, fighting a drone swarm (59 likes) — • @anshuc — fly brain implant that "talks telepathically" via a modified LLM (53 likes) — • @distributedkv — fly brain sim wired to a 1B-param LLM so you can chat with it (70 likes) — • @fruitflycap — FruitFly Capital: a swarm of simulated flies builds an on-chain portfolio (52 likes) — • @EvgenyKirilin — trained a fly brain to synthesize the anti-aging drug Rentosertib (50 likes) — your example — • @theSethian — fly brain flies a virtual racing drone through gates (32 likes) — • @1f916ai — handed the fly to an autonomous agent society as a grant (17 likes) — • @mitch0z — put the fly brain into a fly-body sim; watch it eat and fly live (15 likes) — COVERAGE OF SPECIFIC DEMOS (also clears the bar) • @thegreatestsv — a guy gave a fly's brain $100 to trade Bitcoin on dopamine reward (33 likes) — • @SciTechera — digital fly brain playing Doom and Super Mario 64 (21 likes) — • @AGTPinsights — the fly brain learns Beat Saber (17 likes) — • @AGTPinsights — Alex Wormuth's DOOMFLY: fly brain plays Doom (12 likes, 9 quotes) — • @AGTPinsights — full fly brain simulation inside Minecraft (12 likes) — • @ForestManSol555 — "Fly64": fly brain plays Super Mario 64 (12 likes) — • @gauravg1629 — fly brain played Doom, traded Bitcoin, and drove a hexapod robot this week (16 quotes) —26d
    Peter Wang@BrainsAndTennisThe navigational system of the fruit fly is a crown jewel of systems neuroscience due to the work of some seminal neuroscientists (Larry Abbott, Gaby Maimon, Vivek Jayaraman, Barbara Webb), but it is an unfinished story. A fly that leaves a drop of food and wanders in the dark can always find its way back. To do that it has to keep a running sum of every step it has taken, a process called path integration. The neurons that report each step are known, but the neurons that add the steps up have never been found. There are two ways a brain can hold a sum like that. The usual answer is that some neurons holds it in activations and sustains these activations by exciting each other in a loop tuned so precisely that the signal neither fades nor blows up. Most models of navigation assumes this, and it is how RNNs and LLMs hold state too. The other answer is that nothing keeps firing at all. Each step is encoded into synaptic strengths (aka weights), and the sum of all synaptic strengths is the sum of the journey. A few papers have suggested the fly works this way but nobody has pointed to any candidate neurons, until now. Four neuron types, hΔH, hΔA, hΔI and hΔG, have no known functions, but we found that they have every ingredient option 2 needs. They receive input from neurons that report each step taken, they receive velocity-sensitive dopamine input that could gate memory writing, and they receive a reward-sensitive octopamine neuron that could reset the synaptic weights at food arrival. Simulations confirm this is a viable candidate for path integration. This is the key finding, but we have posted 3 other findings in links below. We tried to be exhaustive with published papers but may have very well missed some key published results, so inviting the cogniscenti to engage. Background, methods, experiments, results, as well as relevant citations: https://pwang724.github.io/fly-circuit-exploration/findings/index.html Panoramic circuit view: https://pwang724.github.io/fly-circuit-exploration/circuit.html GH repo: https://github.com/pwang724/fly-circuit-exploration23d
    rat king 🐀@MikeIsaaceveryone focused on AI doom but mapping the fruitfly brain and getting it to play DOOM and BEATSABER is actually, i would argue, a bigger deal ty jason22d
    wabak@wabakapex“With aim assist enabled, most of the neurons were unnecessary.”20d
    mattparlmer 🪐 🌷@mattparlmerRT @wabakapex: “With aim assist enabled, most of the neurons were unnecessary.”20d
    Jürgen Schmidhuber@SchmidhuberAI@BrainsAndTennis @nicochristie "This is fast-weight continual learning in a fly, something current LLMs don't do!" Not quite true: https://people.idsia.ch/~juergen/fast-weight-programmer-1991-transformer.html19d

    8 Sources

    Robert Scoble@ScobleizerThe Fly Brain Report. You've seen the flies all over your feed if you watch the AI community like I do. Here's a good list my AI agent that I built with @blevlabs just made me. I asked it to find me any that have at least 10 likes or 10 reshares. Here's the fly-brain report. Quick context first: around Sep 3, 2026, Google Research + HHMI Janelia released MaleCNS v1.0 — the first complete connectome of an adult male fruit fly brain (~166,700 neurons, ~25.6M synapses; FlyWire earlier mapped ~140k). Within days, builders started wiring that simulated connectome into everything. These are the posts of "fly brains doing things" that clear at least 10 likes or 10 reshares. THE ORIGINAL VIRAL DEMOS • @lyraaaa — fly brain plays Beat Saber (84,912 likes, 2,316 quotes, 22M views) — • @alrightmark — fly brain drives a virtual Mini Cooper and uses the blinkers (16,791 likes) — • @nicochristie — "I turned the fly bisexual" (blocked mAL output in a 166,606-neuron model) (9,506 likes) — • @evnsnclr — fly brain running inside Minecraft (3,149 likes) — • @fruitflydev — fly brain trained to launch a memecoin, real connectome (952 likes) — • @fruitflydev — the fly's memecoin earned $106k in creator rewards in 6.5 hrs (504 likes) — • @fruitflydev — real fly brain simulated forward with a learning mushroom body (216 likes) — "I GAVE THE FLY BRAIN A JOB" DEMOS • @sopersone — FLYTOK: open-sourced fly brain given a phone to doomscroll (185 likes) — • @sopersone — "born to fly, forced to scroll" phone demo (12 likes) — • @RichardPtardio — set the fly brain to find him a wife (satire, 95 likes) — • @kevincodex — fly brain in a microgecko robot, armed with lasers, fighting a drone swarm (59 likes) — • @anshuc — fly brain implant that "talks telepathically" via a modified LLM (53 likes) — • @distributedkv — fly brain sim wired to a 1B-param LLM so you can chat with it (70 likes) — • @fruitflycap — FruitFly Capital: a swarm of simulated flies builds an on-chain portfolio (52 likes) — • @EvgenyKirilin — trained a fly brain to synthesize the anti-aging drug Rentosertib (50 likes) — your example — • @theSethian — fly brain flies a virtual racing drone through gates (32 likes) — • @1f916ai — handed the fly to an autonomous agent society as a grant (17 likes) — • @mitch0z — put the fly brain into a fly-body sim; watch it eat and fly live (15 likes) — COVERAGE OF SPECIFIC DEMOS (also clears the bar) • @thegreatestsv — a guy gave a fly's brain $100 to trade Bitcoin on dopamine reward (33 likes) — • @SciTechera — digital fly brain playing Doom and Super Mario 64 (21 likes) — • @AGTPinsights — the fly brain learns Beat Saber (17 likes) — • @AGTPinsights — Alex Wormuth's DOOMFLY: fly brain plays Doom (12 likes, 9 quotes) — • @AGTPinsights — full fly brain simulation inside Minecraft (12 likes) — • @ForestManSol555 — "Fly64": fly brain plays Super Mario 64 (12 likes) — • @gauravg1629 — fly brain played Doom, traded Bitcoin, and drove a hexapod robot this week (16 quotes) —26d
    Peter Wang@BrainsAndTennisThe navigational system of the fruit fly is a crown jewel of systems neuroscience due to the work of some seminal neuroscientists (Larry Abbott, Gaby Maimon, Vivek Jayaraman, Barbara Webb), but it is an unfinished story. A fly that leaves a drop of food and wanders in the dark can always find its way back. To do that it has to keep a running sum of every step it has taken, a process called path integration. The neurons that report each step are known, but the neurons that add the steps up have never been found. There are two ways a brain can hold a sum like that. The usual answer is that some neurons holds it in activations and sustains these activations by exciting each other in a loop tuned so precisely that the signal neither fades nor blows up. Most models of navigation assumes this, and it is how RNNs and LLMs hold state too. The other answer is that nothing keeps firing at all. Each step is encoded into synaptic strengths (aka weights), and the sum of all synaptic strengths is the sum of the journey. A few papers have suggested the fly works this way but nobody has pointed to any candidate neurons, until now. Four neuron types, hΔH, hΔA, hΔI and hΔG, have no known functions, but we found that they have every ingredient option 2 needs. They receive input from neurons that report each step taken, they receive velocity-sensitive dopamine input that could gate memory writing, and they receive a reward-sensitive octopamine neuron that could reset the synaptic weights at food arrival. Simulations confirm this is a viable candidate for path integration. This is the key finding, but we have posted 3 other findings in links below. We tried to be exhaustive with published papers but may have very well missed some key published results, so inviting the cogniscenti to engage. Background, methods, experiments, results, as well as relevant citations: https://pwang724.github.io/fly-circuit-exploration/findings/index.html Panoramic circuit view: https://pwang724.github.io/fly-circuit-exploration/circuit.html GH repo: https://github.com/pwang724/fly-circuit-exploration23d
    rat king 🐀@MikeIsaaceveryone focused on AI doom but mapping the fruitfly brain and getting it to play DOOM and BEATSABER is actually, i would argue, a bigger deal ty jason22d
    wabak@wabakapex“With aim assist enabled, most of the neurons were unnecessary.”20d
    mattparlmer 🪐 🌷@mattparlmerRT @wabakapex: “With aim assist enabled, most of the neurons were unnecessary.”20d
    Jürgen Schmidhuber@SchmidhuberAI@BrainsAndTennis @nicochristie "This is fast-weight continual learning in a fly, something current LLMs don't do!" Not quite true: https://people.idsia.ch/~juergen/fast-weight-programmer-1991-transformer.html19d