Biotech startup Cortical Labs is working on two small data centers run by human brain cells, putting lab-grown neurons onto silicon in an experiment that could one day challenge chips from the likes of Nvidia Corp. Biotech startup Cortical Labs is working on two small data centers run by human brain cells, putting lab-grown neurons onto silicon in an experiment that could one day challenge chips from the likes of Nvidia Corp. The Australia-based startup unveile... [319 chars]