Repetition is a principle we use in our lives for all sorts of reasons. By repeating things we remember them. Do you recall learning your times tables as a kid? What did you do? If you were anything like me it was the first order of day in infants then primary school to recite the times tables over and over again (…three sixes are eighteen, 4 sixes are twenty four, five sixes are thirty…go on admit it, you can hear yourself saying them in that deadpan tune of recitation). But it was via repetition that we learnt them and ingrained them into our brains, to be recalled in times of need (like in high school when we suddenly had to do these bizarre formulaic things called calculus and integration).