1. They are (impossible for both to exist together at the same time).
2. (more than two, but not a lot of) explanations (of why things work or happen the way they do)make up an (instance of watching, noticing, or making a statement).
3. (more than two, but not a lot of) (instances of watching, noticing, or making statements) makeup an explanation (of why something works or happens the way it does).
4. There is a back and forth/equal between people and energetic/changing interaction between them.