Innovations are most commonly found at intersections. If innovation is chance driven, combining two unrelated subjects, exponentially increases the chance of new innovative associations (which makes for radical innovation rather than incremental innovation)
How to increase chance of innovation by leveraging intersections?
1. Consciously combine unrelated concepts
2. Work with people with diverse experiences
Contrary to popular thinking, 'N' people brainstorming together come up with lesser number of ideas than 'N' people thinking individually. This happens due to 'blocking' (In groups, peoples' short term associations get blocked by others)
Source: The Medici Effect