At the cellular level, all our senses keep ticking along neural pathways from one neuron to another in a series of electrochemical spikes and neurons connect with each other through their various tendrils. These connect with each other over tiny gaps called synapses. And they communicate between these gaps by firing ion signals along with tiny amounts of electricity. These are called action potentials. The ability to hear, communicate or see when they are not able to is actually a beautiful idea and that’s what Neuralink is doing.