In this photo taken on May 5, 2026, chief scientific and operations officer Brett Kagan speaks to AFP in an interview at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

In this photo taken on May 5, 2026, chief scientific and operations officer Brett Kagan looks at cortical and hippocampal cells on cell culture plates as they attempt to decode morse code, at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

In this photo taken on May 5, 2026, research scientist Daria Kornienko places a CL1 unit containing cortical and hippocampal cells on a cell culture plate, into server racks and available to study via the internet at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

In this photo taken on May 5, 2026, Scientific Systems Intergration Manager Justin Bourke inspects a CL1 unit containing cortical and hippocampal cells on a cell culture plate as they are placed in servers where they are available to study via the internet, at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

This photo taken on May 5, 2026, shows Micro Electrode Array (MEA) chips with nutrients placed on neurons at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

In this photo taken on May 5, 2026, senior scientific specialist Kwaku Dad Abu Bonsrah looks through a microscope at cortical and hippocampal cells on a cell culture plate at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne on May 5, 2026. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

In this photo taken on May 5, 2026, Scientific Systems Intergration Manager Justin Bourke (L) and Senior Applications Scientist Alon Loeffler (R) point to a image from a microscope of cortical and hippocampal cells on a cell culture plate at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole

In this photo taken on May 5, 2026, research scientist Daria Kornienko looks at a image from a microscope of cortical and hippocampal cells on a cell culture plate at Cortical Labs' Physical Containment Level 2 (PC2) laboratory in Melbourne. Australian researchers have trained lab-grown brain cells on a silicon computer chip to play the nineties shooter "Doom" and say they are just scratching the surface on what the neurons could be capable of doing. (Photo by William WEST / AFP via Getty Images) / To go with 'AUSTRALIA-TECHNOLOGY-CHIPS-GAMEs,FOCUS' by Janelle Meager with Sophia Poole