 trained Morse code operators have been able to copy 100% of a message while carrying on a meaningful conversation.This relies on the reflexive response due to "overlearning" the skill of morse code reception/detection/transcription so that it is an autonomous function requiring no specific attention to perform.This overtraining of the brain comes as the "practice of a skill [surpasses] 100% accuracy," allowing the activity to become autonomic, while your mind has room to process other actions simultaneously.