Summary: Energy is Harmony
Each type of energy has their own strength and weakness. There is no type of energy that will be the answer of everything. We need to have balance. Well, a harmony. Just like I explain to my daughter, you need to have balanced food (protein, fat, carbohydrate), you need to have balanced life (work, play, rest).
However there is still a room for improvement. We did not know which the best balance that a country should have (depend on many factor), we still did not know what will be happened if we still use current balance (risk). Let’s hope for the best (someone will invent something) but also prepare for the worst.