The starting point for energy security today as it has always been is diversification of supplies and sources.
But that's not enough: To maintain energy security, one needs a supply system that provides a buffer against shocks. It needs large, flexible markets. And it's important to acknowledge the fact that the entire energy supply chain needs to be protected.
People always underestimate the impact of technology. To give you an example: In the 1970s the frontier for offshore development was 200 meters, today it is 4,000 meters.
So the major obstacle to the development of new supplies is not geology but what happens above ground: international affairs, politics, investment and technology.
We are living in a new age of energy supply anxiety.