I read a copy of this presentation from when Andy Gibbons gave it in Orlando in June 2004. Being in a live session was interesting as one of the participants in the session suggested that the trial and error method of learning something was inherently inefficient. I wondered once that comment was made if perhaps efficiency is not always the best standard of what we should be doing. Perhaps the “inefficient” method causes the information and knowledge to be more firmly grounded in the mind of the learner. The second thing is that there is a chance that the trial and error method may in fact cause the interactions of the various pieces of information to be more firmly linked in the mind of the learner.