Yesterday, we spoke about DBS (deep brain stimulation). Today, we’ll talk about a different kind of brain stimulation- tCDS (trans-cranial direct current stimulation). The goal of tCDS is to develop a feeling of “effortless” concentration, associated with outstanding performance. This feeling is called the “flow” in the vernacular. Before you decide to “go with the flow”, you have to understand that we don’t quite have it “nailed down”, either.