A novel intersection

New innovations emerge at the intersection of technical disciplines that never intersected before. Or a new innovation — a breakthrough innovation — occurs where you apply a technology to a market where it’s never been applied before. The principle is that breakthrough innovations rarely occur within a technical discipline or within a market, but almost always where you create a novel intersection between markets.

Clayton M. Christensen, Harvard University, Interview in ConsultingMagazine.com

That's easy to say, but what's really challenging is creating forums, like InnoVenture, where lots of novel intersections can occur.