@ignis_code

They are now making fruit flies write. They are even using them to create entire fonts. The method is surprisingly fascinating. First, an image of a letter is projected into the fruit fly’s eye. The visual information is transmitted through its visual neurons and processed by a trained neural network connected to its neural circuitry. The resulting signal is then sent to the motor neurons controlling the fly’s right foreleg. Those motor neurons activate the leg muscles, causing the fly to move its foreleg in a specific pattern that traces the shape of the letter. A tiny black pen is attached to the foreleg, allowing the movement to leave an actual written mark on the surface. In other words, visual information enters through the fly’s eyes, is translated into neural commands, and ultimately becomes physical handwriting through its own muscles. Researchers have even used this system to create fonts based on the letters drawn by fruit flies. At this point, I’m becoming increasingly curious about what else fruit flies could be made to do. …https://fruitfly-type.fancy-egret-3392.chatgpt.site [image] --- Even I get to be the alpha fruit fly. > **IGNIS @ignis\_code** · 2026-09-11 > > Someone put real fruit fly brain data into NPC fruit flies and dropped them into a virtual world. > > So now you can basically enter a simulation populated by fruit flies whose behavior is driven by actual neural data. > > We went from making fruit flies write... > > to building a world --- ##### Comments > **Cadmio @cadmiumcadmium** · [2026-09-11](https://x.com/cadmiumcadmium/status/2098259010692559275) > > The fact that you can teach a fruit fly brain simulation to write suggests it is not a good fruit fly brain simulation > **ghst @ghstxbt** · [2026-09-11](https://x.com/ghstxbt/status/2098233081002086883) > > They’re gonna end up having to pay taxes for the work they’re doing 😂 > **Miroslav Lysyuk @miromusing** · [2026-09-11](https://x.com/miromusing/status/2098343111432737142) > > Like all the other fly posts, let’s be clear here - the fly neural circuitry is just the eyes and the muscles, everything else depends on a connection to an external more powerful neural net “brain” (we’re not discovering flies have an untapped potential to read and write). > > Fly > **Prototype @picosaurus** · [2026-09-11](https://x.com/picosaurus/status/2098306466130141259) > > They gonna solve a millenium maths price before EOW > **james @bcrap** · [2026-09-11](https://x.com/bcrap/status/2098424513910407429) > > u do realised we are god to them, and we are probably fly to god > **Jake @Realsolopass** · [2026-09-11](https://x.com/Realsolopass/status/2098250863076622469) > > holy shit a fruit fly in simulated hell does a better job writing Korean than me > > my night is ruined > **Azuchian @Azuchian1** · [2026-09-11](https://x.com/Azuchian1/status/2098244523100979359) > > Next we should do this with a mammal's brain. Then we'll surpass LLMs > **Jonathan Eleser @jonathaneleser** · [2026-09-11](https://x.com/jonathaneleser/status/2098251883517215125) > > Now we just need to make them pay taxes > **TheVark @isthatvark** · [2026-09-11](https://x.com/isthatvark/status/2098376323336986835) > > From dog ate my home work to a fly did my home work. > > Phantasmagorical. > **Tarkhan @SteelTarkhan** · [2026-09-11](https://x.com/SteelTarkhan/status/2098423924203868339) > > This is just proof that humans have the divine creative spark > **LienPixels🌌 @LienTheAlien** · [2026-09-11](https://x.com/LienTheAlien/status/2098402698500493605) > > Is a simulation this tweet is just another click bait. > **Davis Dilanchian @davisdilanchian** · [2026-09-11](https://x.com/davisdilanchian/status/2098256694652682669) > > HELL > > WORLD > **Rita Tamás @flipsburner** · [2026-09-11](https://x.com/flipsburner/status/2098361719126999208) > > Fruit flies are interdimensional creatures