Abbiamo circa 86 miliardi di neuroni nel nostro cervello. (Credit foto: DARPA – courtesy of Massachusetts General Hospital and Draper Labs, “https://www.darpa.mil/ddm_gallery/SUBNET_Final_1.jpg”, ridimensionata, ritagliata, dimensioni: 800×700 px, public domain, “https://www.darpa.mil/policy/usage-policy”).