A collision is not an accident!
Think of the greatest inventions of the modern era, those which have completely revolutionised our way of living. Whether your first association is electricity, the Internet, plastic, or even Viagra; there is one common element which they all share. These world-shattering ideas, as many others, resulted from encounters between different disciplines; scientific collisions if you will. They were conceived when insight from one field was applied onto a totally different one. That is why remote, sometimes opposite, schools of thought have a tendency of creating concepts and ideas when they collide (even coincidently).