I like Don's statement:

For example, Einstein's theory of relativity did not negate Newton's laws of motion, or Kepler's laws of planetary orbits. It merely subsumed them into a more sophisticated theory.

probably because that's a key illustration of one of my thinking models.

Does anyone have a link to a website, or a suggested book, or just a summary of various thinking models using visual models? (see, I can use the underline thingy too)

What I mean is...the goalpost analogy implies linear movement (to me) while Don's subset analogy implies Venn diagrams.

Also, can anyone give several, more than two examples of "Science" changing a theory, and does the example fit the goalpost analogy or the Venn picture?

I'm truly confused by this discussion. I get the feeling that folks are talking about different ideas, and heading off into different directions. (picture my wheel with spokes illustraion...;-))