A roundworm has 300 neurons and 7000 connections between them. We still do not understand how its brain works. Our brain has 86,000,000,000 neurons and 100,000,000,000,000 connections. Neuralink’s device has 1024 electrodes. That sums up as to where we stand. — Neuralink is a neurotechnology company founded by Elon Musk trying to build a sewing machine which can thread-in thin electrodes into the brain. It showed its first demonstration, a couple of days back creating hardly any buzz (check the plot below) around it. And rightly so.