To people who have trouble with this concept I suggest the analogy to reading without voicing out words yet still internalizing the concepts, and often at a muc

To people who have trouble with this concept I suggest the analogy to reading without voicing out words yet still internalizing the concepts, and often at a much faster rate than when vocalizing during reading (which in turn can be pleasant for some poetry). It is possible to read multiple lines in parallel and the mechanism is similar to sight reading piano music when you have two (or occasionally three) lines of information that immediately translate to actions in your arms, hands, and fingers. In a related sense, sight reading music does not involve any inner voice or chatter yet a lot of conscious decisions are being made and a lot of hard non-verbal thinking goes into optimizing technique. Human language is just too inefficient for most high performance thinking but it is the best tool we currently have for storing and transmitting thoughts.