There are different kinds of truths for different kinds of people. There are truths appropriate for children; truths that are appropriate for students; truths that are appropriate for educated adults; and truths that are appropriate for highly educated adults, and the notion that there should be one set of truths available to everyone is a modern democratic fallacy. It doesn't work.
When I’m a Duchess,” she said to herself (not in a very hopeful tone though), “I won’t have any pepper in my kitchen at all. Soup does very well without. Maybe it’s always pepper that makes people hot-tempered,” she went on, very much pleased at having found out a new kind of rule, “and vinegar that makes them sour—and camomile that makes them bitter—and—and barley-sugar and such things that make children sweet-tempered. I only wish people knew that; then they wouldn’t be so stingy about it, you know—
Most people consider themselves above the gritty and relentless details of life that allow the creation of great wealth. They leave it to the experts. But in general you join the one percent of the one percent not by leaving it to the experts but by creating new expertise, not by knowing what the experts know but by learning what they think is beneath them.
On the professional side, I've helped move cinema from a chemical-based medium to a digital-based medium. That'll be one of the landmarks. And I've left these stories, these little tales that have been imprinted on the media, which will or will not be of interest to people in the future. I've done the best I can.
Changers are characters who alter in significant ways as a result of the events of your story. They learn something or grow into better or worse people, but by the end of the story they are not the same personalities they were in the beginning. Their change, in its various stages, is called the story's emotional arc.