A new field of research dubbed "organoid intelligence" is emerging as scientists look to build computers from lumps of brain cells grown in a petri dish. "The fascinating ability of the brain to make sense of millions of incoming neurons firing with information is very different to the logic of a computer program, which is executing a flow of zeros and ones. "This does not mean that biocomputing will replace all machine learning, but it could be a useful tool for certain tasks it is optimized for