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