Well, it's important because if we want to transition, we need a strategy and we need people to understand it. If you can't understand energy density, you may

Well, it's important because if we want to transition, we need a strategy and we need people to understand it. If you can't understand energy density, you may be under the impression we can go 100% renewable right now. But we can't sustain our current life-style with them today. Also if you think oil companies are going to disappear after we migrated, you are going to be disappointed if you don't understand the role they play in systems.