One of the tests that I frequently use in an interaction is I push on the idea and what I'm looking for is both flexibility & persistence.
Having a great idea for a product is important, but having a great idea for product distribution is even more important.
You should have an investment thesis that essentially says why you think this is potentially a good idea.
When you have an idea, a classic entrepreneurial impulse is to hold the idea close to you and not tell people and that's almost always a mistake.
Good ideas need good strategy to realize their potential.
Entrepreneurship is a life idea, not a strictly business one; a global idea, not a strictly American one.