I also had another question regarding NNadir's comment above:

If you are French, whether or not you know it, you are extremely lucky to have lots of nuclear plants.   Your country has the finest electrical generations system on the planet.

What makes some countries better at building electrical generations systems than others (in particular nuclear ones)?  And why couldn't the Chinese, the Indians, the Cameroonians, the Nigerians, the Chadeans build such systems as well as the French or even the Americans, assuming that countries with more experience and know-how in nuclear power could help them to reach that level?

Truth unfolds in time through a communal process.