* This site breaks down some various theories in time travel as it relates to both large scale and individual experiences. It offers simple examples to illustrate the possibilities and show the differences between competing theories. And yep - I could navigate this site all day!
A good anime depicting development between main characters and side characters. This shows perfect examples of how to build your stories around your main character.
"So if one child in a family seems to excel at academics, to avoid direct competition, the other child - consciously or unconsciously - will specialize in a different area, like socializing."