Big Ideas

I've just finished spending two weeks working on a project for Naked Communications, trying to answer the question 'What is a big idea?' At the end of those two weeks, I have my own theory on big ideas and the ownership of them. But still, I am left with a nagging doubt about the discovery of big ideas. Is it really possible to define an idea as big before it actually becomes big?

I think there are indicators, but I also think that the alignment of the stars that must take place for an idea to become truly big is so complex that it probably isn't as big as you think it is if you can predict its bigness.