Most people are familiar with the four stages of competence which are illustrated in the chart below. Take learning to ride for instance, before you start, ignorance is bliss and it can seem that there is nothing to it. However, the first riding lesson usually highlights just how much there is to learn - indeed many people give up right at that stage because they think they'll never do it or they have a nasty experience and come off. As time goes by and the student has more lessons they move from conscious incompetence to conscious competence although most people recognise these days that they will always need (and hopefully want) to learn more. As it gets easier they slip into unconscious competence and this is the stage at which it is easy to forget just how hard it was to learn. As time continues to go by people tend to learn bad habits or their body doesn't function as it use to and therefore they may slip into unconscious incompetence all over again.