I think it takes two ingredients to allow a teacher to share with others
about complex concepts:
1) an indepth understanding of the topic. Einstein definitely
understood Relativity so could write it simply.
2) An ability to communicate with all the words of the language.
If you only know 850 words, you won't be able to communicate very
efficiently. Words evokes images which leads to understanding.
-- Gary Scherling Helping people help themselves http://ourworld.compuserve.com/homepages/GScherling_GMS_TPN GSCHERL@fed.ism.ca (GSCHERL)