Related Clues:
- Future invention
- What a germ may become
- It starts in your head
- Invention's origin
- Reflective
- Think about it
- Flash of brilliance, perhaps
- Start of a solution
- Inventor's ''light bulb''
- It might be bright
- It precedes an invention
- Genesis of many great inventions
- Gray cells' product
- Brainstorm result
- Theory, e.g.